Parts Of The Humerus

The elbow is a particularly good example: the round terminal part of the humerus turns in the hollow of the ulna. The humerus is the long bone in your upper arm that connects your shoulder joint to your elbow joint. At first, with a proximal humerus fracture, the main emphasis in on regaining passive motion of the glenohumeral (shoulder) joint. 13 Which is the growing end of humerus? How does. The base of the hand contains eight bones, each called a carpal bone , and the palm of the hand is formed by five bones, each called a metacarpal bone. This is a quiz called Name the Parts of the Humerus and was created by member cynamil. Non-Displaced Fracture. Smooth, hourglass-like structure between medial epicondyle and capitulum of humerus (pointy part of the bow-tie) Coronoid Fossa anterior depression, superior to the trochlea (smaller depression). 133) A 72-year-old female presents to your office with a 12-month old painful nonunion of a 2-part (surgical neck) fracture of the proximal humerus. These attachments are located at the “proximal” end of the humerus. The exposure was completed by elevation of the lateral aspect of the triceps from the distal part of the humerus and the proximal part of the olecranon; this permitted the elbow joint to be hinged open and provided exposure of both the anterior and the posterior articular surface of the distal part of the humerus. It connects the scapula and the lower arm (consisting of the radius and ulna), and consists of three sections. on StudyBlue. By comparison, fractures in the cat are more likely to affect the mid-diaphysis, and fractures in the condylar region are less common ( Table 52-1 ). Structure Parts of the humerus Head of the humerus. Accessing the Humerus. Proximal End of Ulna. Objective To evaluate the clinical effectiveness of surgical vs nonsurgical treatment for adults with displaced fractures of the proximal humerus involving the surgical neck. This is a quiz called Name the Parts of the Humerus and was created by member cynamil. The energy of a trauma often results in fracture at these parts of the immature bone and can lead to premature “closure” of the physes resulting in abnormal growth of either end of the humerus. Skeletal Muscle-Nerve Supply; Muscle Classification - Based on Action; Skeletal Muscle - Parts and Classification; Types of muscles - Skeletal, Cardiac and Smooth; CardioVascular System. The upper arm contains only one bone, the humerus (HYOO-mer-us), which extends from the shoulder joint to the elbow joint. A 1-mm transverse ostectomy was created using an oscillating saw (Stryker Command 2; Stryker Corp, Kalamazoo, MI, USA) at 50% of the entire length of the humerus to create a small nonload-sharing fracture gap model, followed by one of the 3 repair techniques outlined below. The distal end of the radius widens and forms the primary articulation with the proximal carpal bones of the wrist. 33 Proximal Humerus Resection. See your doctor right away if you fall and hurt your shoulder. We present a retrospective study of 125 patients with an impacted valgus fracture (B1. The articular surface, which is part of a sphere varies individually in its orientation as regards inclination and. The top of the arm bone is called the proximal humerus, and the bottom of the bone is called the distal humerus. The lateral and medial epicondyles are part of the humerus. This is the bicipital or intertubercular groove. The humerus (upper arm bone) runs from your elbow to your shoulder and meets at the rotator cuff with a ball-like end known as the greater tubercle. The much smaller lateral epicondyle of the humerus is found on the lateral side of the distal humerus. This bone originates from the shoulder blade known as the scapula and ends at the elbow. The greater tubercle is not separated into two parts like in other species. Parts of the Femur. The Neer classification is commonly used to describe these fractures and can be categorized into 2-part, 3-part, and 4-part fractures with further differentiation into head. Skeleton Display the Mr. The word "humerus" is derived from Latin: humerus, umerus meaning upper arm, shoulder, and is linguistically related to Gothic ams shoulder and Greek ōmos. A humerus fracture is an injury to the bone of the upper arm that connects the shoulder to the elbow. Welcome to The UW Shoulder Site @ uwshoulder. Edwards SL(1), Wilson NA, Zhang LQ, Flores S, Merk BR. Learn about this topic now at Kenhub! Bony structures and ligaments of the humerus and scapula. The four parts include the humeral head, greater tuberosity, lesser tuberosity and humeral shaft. The shoulder is one of the largest and most complex joints in the body. Indicate whether the statement is true or false. She denies prior shoulder pain, and has been treated conservatively with range of motion exercises but continues to complain of debilitating pain and dysfunction with motion above shoulder. The shaft of the humerus has three borders and three surfaces. There are certain parts of the elbow bones which are important when considering elbow problems like swelling. It extends from your shoulder to your elbow, where it joins with the ulna and radius bones of your forearm. From the author. Information was intended for internal use only and. Humerus Proximal End. Human skeleton with cervical vertebrae & hyoid arch. Distally, the humerus becomes flattened. The glenoid cavity of the scapula articulates with the _____ of the humerus. Proximal humerus fractures in the elderly are a relatively rare injury, the treatment of which remains controversial, especially regarding Neer displaced two-part, and three-part and four-part fractures. A fracture is when the continuity of a bone is broken. Fractures of the humerus (upper arm bone) The humerus is the bone that extends from the shoulder to the elbow. —The humerus is ossified from eight centers, one for each of the following parts: the body, the head, the greater tubercle, the lesser tubercle, the capitulum, the trochlea, and one for each epicondyle. Place the thumb of your other hand in the axilla on the anterior inferior humeral head with your fingers on the posterior aspect of the humeral head. title = "Allograft-prosthesis composite reconstruction of the proximal part of the humerus. Anatomical and surgical neck both of the humerus are highly susceptible to fracture. Despite numerous available treatment strategies, the management of complex proximal humeral fractures remains demanding. Displacement of a fragment greater than 1 cm or angulation greater than 45 degrees is considered displaced. where the ball of the humerus fits into a shallow socket on the scapula. During the examination, an X-ray machine sends a beam of radiation through the upper arm, and an image is recorded on a computer or special film. The placement of sutures and cables was described on the basis of anatomical landmarks such as the rotator cuff tendon insertions, the bicipital groove and the surgical neck. Clavicula Illustration Front and side view of the human clavicle, located in the upper anterior part of the thorax. 242K may differ. Part II, is composed of the humerus, glenoid, scapula. Humerus is a typical long bone present in the arm that articulates proximally with the scapula and distally with the bones of the forearm, namely, radius and ulna. To code a diagnosis of this type, you must use specify a 7th character that describes the diagnosis '2-part nondisp fx of surgical neck of left humerus' in more detail. Jakob, Miniaci, Anson. Identify the scapular spine, acromion process & coracoid process. Humerus: The humerus attaches proximally to the scapula (shoulderblade) at the humeral head and distally with the radius and ulna (lower-arm bones) at the trochlea and capitulum, respectively. There are four "parts" of the proximal humerus, so a displaced fracture can either be 2-part, 3-part, or 4-part (a non-displaced fracture is, by definition, 1-part). Keywords: Biomechanics, Proximal humeral fracture, Locking plates, Medial support screws. B, The contents of the cubital fossa. There are three joints in the elbow which allow the hand to be moved to and from the body. The humeral head, also called the surgical head, is the part of the humerus that articulates with the glenohumeral joint in the scapula that is referred to as the shoulder. The nerve supply to the upper limb is an absolutely essential topic for you to nail during revision for your exams, as it is a relatively complex topic which will inevitably crop up in anatomy questions, clinical case scenarios and OSCEs. The upper part of the humerus is connected with the shaft which is cylindrical. The head of the upper arm bone (humeral head) rests in a shallow socket in the shoulder blade called the glenoid. J Bone Joint Surg Br 2007; 89(4): 516-20. Unstable Nonunions of the Distal Part of the Humerus [1] (multiple letters). The humeral head is the "ball" part of the ball and socket. The superolateral part of the scapula is the location of the piriform glenoid cavity for articulation with the head of the humerus. 13 Which is the growing end of humerus? How does. 16 FIGURE 16. 242K - other international versions of ICD-10 S42. Lateral ridge on the distal third of the humerus. The distal end of the radius widens and forms the primary articulation with the proximal carpal bones of the wrist. 1 - Humerus and Elbow Joint: The humerus is the single bone of the arm region. At first, with a proximal humerus fracture, the main emphasis in on regaining passive motion of the glenohumeral (shoulder) joint. The Tikhoff–Linberg Procedure and its Modifications Martin Malawer and James Wittig OVERVIEW The proximal humerus is a common site for primary osteosarcomas as well as chondrosarcomas. 114a and 114b. Axial skeleton includes vertebral columns, skull bones and rib cage while appendicular skeleton comprises on the limbs, hips and shoulder bones. Lateral epicondyle is the bony protrusion on the outer side of the humerus end at the elbow. We have been receiving a large volume of requests from your network. OSGOOD AND CHRISTOPHER S. A two-part fracture involves displacement of the anatomical neck, surgical neck, lesser tuberosity, or greater tuberosity in relation to the remaining intact proximal humerus. This is an article covering the anatomical parts of the humerus. Materials and Methods: Medline, Cochrane, EMBASE, and Google Scholar were searched for studies published until October 2013, reporting functional outcomes of 3- or 4-part fractures of the proximal humerus in skeletally mature patients. 10 The articular head is spherical and has a diameter of 37 to 57 mm. The energy of a trauma often results in fracture at these parts of the immature bone and can lead to premature “closure” of the physes resulting in abnormal growth of either end of the humerus. Commonly thought of as a single joint, the shoulder is actually made up of two separate joints - the glenohumeral and acromioclavicular joints. This type of fracture most often occurs in elderly people. It glides up and down the front of the distal humerus when you bend your arm and rotates around the ulna when you turn your wrist up or down. Moves by swimming and jumping. J Bone Joint Surg Br 2007; 89(4): 516-20. 11, 12 The most superior portion of the articular surface of the humeral head averages 8 mm above the. Proximal humerus fractures should also be classified on displacement. Lateral supracondylar ridge. They can also be unstable because the ball of the upper arm is larger than the shoulder socket that holds it. medial bone of forearm in anatomical position 13. The structure of the trochlea of the humerus includes a concave depression that articulates with the ulna, forming a part of the elbow. Proximal End. UNDER CONSTRUCTION. It glides up and down the front of the distal humerus when you bend your arm and rotates around the ulna when you turn. Anatomy of the Humerus Bone Proximal Region. The femur and humerus are two big bones in the appendicular skeleton. The deep pectoral muscles of the animal's right side are shown in detail. The fractured humerus treatment that is used most often is destabilization in a sling or a brace; the type of fracture and its severity can weigh heavily on whether surgery into whether needed, however. Tears of the capsule or labrum can generate feelings of pain, instability, or a "dead arm" sensation. (medial and lateral epicondyles, medial and lateral supracondylar ridges, coronoid fossa, radial fossa and lecranon fossa. The head faces superiorward, medialward, and slightly anteriorward. [39 Bufquin T, Hersan A, Hubert L, Massin P. By comparison, fractures in the cat are more likely to affect the mid-diaphysis, and fractures in the condylar region are less common ( Table 52-1 ). Deciduous trees loose their leaves. It is bent forward at the summit so as to present a prominent lip which is received into the olecranon fossa of the humerus in extension of the forearm. 1), the humeral head fragment is separate from the shaft and both tuberosities and is dislocated out of the glenoid. Proximal humerus fractures should also be classified on displacement. At the shoulder joint, the top of the humerus is the ball part of the joint. Humerus pain: Pain in the upper arm area. The deltoid tuberosity is part of the humerus. but how? Find out how your bones move thanks to joints, and the difference between movable and immovable joints. At the elbow, it connects primarily to the ulna, as the forearm's radial bone connects to the wrist. The neck of the humerus is located at the top of the arm bone, near the glenoid, or shoulder, socket. Commonly thought of as a single joint, the shoulder is actually made up of two separate joints - the glenohumeral and acromioclavicular joints. To code a diagnosis of this type, you must use specify a 7th character that describes the diagnosis '2-part nondisp fx of surgical neck of left humerus' in more detail. The largest and longest bone of the upper limb, it articulates with the scapula at the shoulder and with the radius and ulna (forearm bones) at the elbow. CONCLUSION: The current series of fractures was able to demonstrate similar and satisfactory outcomes following locked plating treatment of complex 3- and 4-part proximal humerus fractures in younger patients and patients older than the age of 65, while still accepting the null hypothesis. The humeral head, also called the surgical head, is the part of the humerus that articulates with the glenohumeral joint in the scapula that is referred to as the shoulder. Smooth, hourglass-like structure between medial epicondyle and capitulum of humerus (pointy part of the bow-tie) Coronoid Fossa anterior depression, superior to the trochlea (smaller depression). According to the Sports Injury Clinic website, one of the most common locations for a humerus, or upper arm, bone fracture is the neck of the humerus. If the capitulum is on the right side, it is a right humerus. A metal plate is inserted and positioned over the humerus. Journal of Bone and Joint Surgery - Series A, 86(1), 184-185. , flexor carpi ulnaris m. The collection of bones in the human body is called the skeletal system. Initial treatment of this unusual injury should be focused on the supracondylar humerus fracture. The Skeleton Facts A big part of the body, the skeleton is what gives a frame on which the rest of the body parts hang = muscle, organs, skin. The humerus is short relative to the longer, slender radius; the ulna is reduced and not part of the wrist joint. —The humerus is ossified from eight centers, one for each of the following parts: the body, the head, the greater tubercle, the lesser tubercle, the capitulum, the trochlea, and one for each epicondyle. Humeral fractures can be classified into three types, depending on which part of the bone is broken. Laterally, the deltoid tuberosity is palpable through the skin and connects to the head of the humerus via a ridge and merges distally with the crest of the humerus. Not Valid for Submission. ; Bigliani, Louis U. The distal end consists of both articular and non-articular parts. A joint is the part of the body where two or more bones meet to allow movement Locomotor system. The arm is neither lengthened nor shortened, for parts of the fractured surfaces rest in contact with each other. Coronoid process – this ridge of bone projects outwards anteriorly, forming part of the trochlear notch. indd 161 9/16/11 10:46 AM. the humerus articulates proximally with the scapula at the glenoid fossa; it articulates distally with the radius and ulna at the elbow joint lateral epicondyle a knob-like projection on the lateral side of the humerus proximal to the capitulum it is the site of attachment of. wrist bones. A fracture to the humerus bone is a possible consequence of a traumatic event, such as a fall or forceful collision. parts of the skeleton have been labeled. Allows a great range of movement in all directions. In place of its attachment to the humerus is podsuhozhilnaya infraspinatus muscle pouch (bursa subtendinea mm. Proximal humerus fractures are common. At the elbow, it connects primarily to the ulna, as the forearm's radial bone connects to the. O'Driscoll has developed a clinical maneuver, the dynamic labral shear test (DLST). Smooth, hourglass-like structure between medial epicondyle and capitulum of humerus (pointy part of the bow-tie) Coronoid Fossa anterior depression, superior to the trochlea (smaller depression). The radius and ulna bones go from the elbow to the wrist. Disruption of any of the parts of the shoulder can create difficulty with its function. To continue with your YouTube experience, please fill out the form below. Lateral supracondylar ridge. The four rotator cuff muscles, the main muscles responsible for shoulder stability and mobility, all attach here. The structure indicated is the capitulum of the distal humerus. The upper end of the humerus has a ball-like shape that connects with the socket of the scapula, called the glenoid. Its dorsal surface is more or less triangular in form, smooth, subcutaneous and covered by a bursa. The Tikhoff–Linberg Procedure and its Modifications Martin Malawer and James Wittig OVERVIEW The proximal humerus is a common site for primary osteosarcomas as well as chondrosarcomas. Human skeleton with cervical vertebrae & hyoid arch. Proximal Humerus Fractures ORIF or IM Nail – Which is better? Richard Gellman, MD OTA PA/NP Course 2013 Up to 5% of all fractures, most often elderly from GLF Physiologic status of patient • Bone quality, medical comorbidities • Associated injuries (vascular, neuro, or polytrauma). —The olecranon is a large, thick, curved eminence, situated at the upper and back part of the ulna. Study 19 Parts of the Canine Humerus flashcards from Shaina H. Muscle and Forces Physicists recognize four fundamental forces. Different Parts of Ulna and the Joints Formed by Them. It is surrounded by to tuberosities. We have more than 80 highly trained and qualified physicians dedicated to providing top quality healthcare for adults in Sarasota and Manatee County. tibial tuberosity. A humerus fracture can cause pain in the back of the arm. 2-PART FRACTURE: This is when the proximal humerus is broken into two pieces, meaning there is one fracture line on x-ray. Abduction of the Arm:. The lesser tuberosity is directed anteriorly. Humerus: The humerus attaches proximally to the scapula (shoulderblade) at the humeral head and distally with the radius and ulna (lower-arm bones) at the trochlea and capitulum, respectively. Commonly, this will be a fracture of the greater tuberosity, which is the part of the humerus where the rotator cuff attaches. berosities comprise the 4 parts of the proximal humerus. The long part of the bone is called the shaft. Contraindications for repair of proximal humerus fractures include inability to tolerate the procedure medically and lack of clearance for surgery through the primary care physician or specialty consultants. It is wrench shaped, and articulates with the trochlea of the humerus. College of Allied Health Science ANATOMY MUSCULOSKELETAL RADIUS & ULNA, ELBOW AND RADIOULNAR JOINT HERMIZAN BIN HALIHANAFIAH Bsc Biomedicine (Hons) UKM Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. A metal plate is inserted and positioned over the humerus. Proximally, humerus forms part of the shoulder joint whereas distally, the humerus articulates with the radius and ulna to form the elbow joint. When all parts of the muscle work together they have the effect of simultaneously elevating and retracting the scapula. A type 2 excludes note represents "not included here". The humerus bone acts as an attachment site for many important muscles and ligaments. This often is caused by a motor vehicle accident or high-impact fall. In addition, ribs 1 through 7 are each attached in front to. 1 - Humerus and Elbow Joint: The humerus is the single bone of the arm region. It is a play on words (humourous = funny). This science quiz game will help you learn 15 of the most important bones. artery, blood vessel that conveys blood away from the heart heart, muscular organ that pumps blood to all parts of the body. The prominent bony projection on the medial side is the medial epicondyle of the humerus. The distal end consists of both articular and non-articular parts. Before reading the body parts list, take a look at different human body systems so that it will be easier to understand how the body functions as a self-sustaining single unit. , flexor carpi radialis m. Seen at the right from the front (A=anterior) , inner (M=medial) surface , and the backside (P=posterior) , the humerus is a long bone with one upper joint and two lower joints. Indications: Neer 2-, 3- and 4- part fractures with rotation greater than 45 degrees or displacement greater than 5mm (or 1 cm, depending on source), Head splitting fractures in younger patients (Part of humeral head dislocates and the unfractured part remains attached to the shaft). Please Note: You may not embed one of our images on your web page without a link back to our site. wrist bones. The part of the humerus most commonly fractured is the neck of the bone (at the upper end, just below the head of the humerus). Lateral epicondyle. —The humerus is ossified from eight centers, one for each of the following parts: the body, the head, the greater tubercle, the lesser tubercle, the capitulum, the trochlea, and one for each epicondyle. anterior depression, superior to the trochlea, which receives part of the ulna when the forearm is flexed 15. • The length and the average diameter of the femur are higher than that of humerus. Extend hand and forearm as far as patient can tolerate. Humerus serve as an attachment to 13 muscles and 3 very important nerves which control the functions of hand and elbow pass through the humerus. Anatomy, definition and function of the humerus. Infraspinati). OSGOOD AND CHRISTOPHER S. This bone originates from the shoulder blade known as the scapula and ends at the elbow. If the fracture has caused part of the humerus to shift, the bone is realigned. Six patients had four-part proximal humerus fractures, 11 patients had three-part proximal humerus fractures, and nine patients had two-part proximal humerus fractures. The Trapezius is one of the shoulder girdle muscles most commonly used to fix the scapula, to allow the Deltoid to move the Humerus. It is located between the elbow joint and the shoulder. We present a retrospective study of 125 patients with an impacted valgus fracture (B1. Find out what the radius, diameter and circumference are, how to measure the area of a circle, what a circle chord, sector and segment are and much more. The humerus is the single bone of the upper arm, and the ulna (medially) and the radius (laterally) are the paired bones of the forearm. Initial treatment of this unusual injury should be focused on the supracondylar humerus fracture. The radial head is the knobby end of the radius where it meets the elbow. The battle-ready medieval knight was attired in a suit of armor referred to as a "body harness. The head is devoid of all soft-tissue. The Neer classification of proximal humeral fractures is probably the most frequently used system along with the AO classification of proximal humeral fractures. Our findings demonstrated the variable shape of the proximal humerus as well as its variable dimensions. Fractures of this region are common both with high-energy injuries in people of all ages, as well as with simple falls in older people with osteoporosis. Rotation of the humerus is accomplished by a group of four muscles, subscapularis, supraspinatus, infraspinatus, and teres minor, collectively called the rotator cuff. 2-PART FRACTURE: This is when the proximal humerus is broken into two pieces, meaning there is one fracture line on x-ray. Trochlea of the Humerus: The trochlea of the humerus is an anatomical feature of the humerus, more commonly known as the upper arm bone. 242K - other international versions of ICD-10 S42. The greater tuberosity is directed laterally. I made them hollow, using different techniques. The disk-shaped head of the radius, which is smaller than the base, articulates with the lower end of the humerus (the bone of the upper arm) to form part of the elbow joint. Infraspinatus muscle starts from the wall of the infraspinatus fossa and the back surface of the blade, and attached to the middle floor of a large mound humerus and shoulder joint capsule. Fractures of the humerus. If the capitulum is on the right side, it is a right humerus. Humerus fractures are generally divided into three types of injuries based on the location of the fracture. If the capitulum is on the left side of the bone, it is a left humerus. All of these areas are attachment points for muscles that act on the forearm, wrist, and hand. These mnemonics include acronyms, short poems, and silly phrases that are quite effective for remembering parts of the body. The humerus is also called the 'funny bone'. this image shows the anatomy of the fibula and tibia bones (the bones of the leg) in relation to each other ,displaying the different features and parts of them ,fibula (on the left) and the tibia (on the right) showing: "Tibia". Isolated fractures of the greater tuberosity of the humerus can occur in anterior shoulder dislocations or as the result of an impaction injury against the acromion or superior glenoid. 11, 12 The most superior portion of the articular surface of the humeral head averages 8 mm above the. About This Quiz & Worksheet. Similarly, falling directly on the elbow, shoulder, or any part of the humerus may result in a fracture. Contraindications for repair of proximal humerus fractures include inability to tolerate the procedure medically and lack of clearance for surgery through the primary care physician or specialty consultants. Children will love assembling their own skeletons. The shaft of the humerus has three borders and three surfaces. ICD Code S42. Humerus, long bone of the upper limb or forelimb of land vertebrates that forms the shoulder joint above, where it articulates with a lateral depression of the shoulder blade (glenoid cavity of scapula), and the elbow joint below, where it articulates with projections of the ulna and the radius. In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species. Human clavicle & scapula in position with the humerus. As always, you should consult with your healthcare provider about your specific health needs. Proximal humerus fractures account for 5% of all fractures. 1 Part B Assessments Label the structures indicated in figure 16. Four-part valgus-impacted fractures of the proximal humerus. 242K - other international versions of ICD-10 S42. This tendon, located at the “distal” end of the humerus, inserts into the radius bone, one of two bones in the forearm. This is the head of the humerus. Trochlear notch – formed by the olecranon and coronoid process. The placement of sutures and cables was described on the basis of anatomical landmarks such as the rotator cuff tendon insertions, the bicipital groove and the surgical neck. The bone in the upper arm is the humerus while ulna and radius make up the forearm. A metal plate is inserted and positioned over the humerus. Gross anatomy Osteology The humerus begins proximally a. Parts of the Canine Humerus at University of California Davis School of Veterinary Medicine - StudyBlue Flashcards. Free Online Library: Three-and four-part proximal humerus fractures: evolution to operative care. An incision is made on the side or front of the arm to allow access to the side of the humerus. Despite numerous available treatment strategies, the management of complex proximal humeral fractures remains demanding. The Skeleton Facts A big part of the body, the skeleton is what gives a frame on which the rest of the body parts hang = muscle, organs, skin. The greater tubercle is located laterally and has both an anterior and posterior. The muscles of the shoulder girdle. These mnemonics include acronyms, short poems, and silly phrases that are quite effective for remembering parts of the body. The prominent bony projection on the medial side is the medial epicondyle of the humerus. • The length and the average diameter of the femur are higher than that of humerus. Isolated fractures of the greater tuberosity of the humerus can occur in anterior shoulder dislocations or as the result of an impaction injury against the acromion or superior glenoid. The head of the humerus forms the ball portion of the ball-and-socket like glenohumeral joint. The top of the arm bone is called the proximal humerus, and the bottom of the bone is called the distal humerus. Depending on placement of bones in the arm and other structures, you can divide the human arm into two major parts. Welcome to The UW Shoulder Site @ uwshoulder. distal condyle of the humerus that articulates with the ulna 12. The humerus is the both the largest bone in the arm and the only bone in the upper arm. Clavicula Illustration Front and side view of the human clavicle, located in the upper anterior part of the thorax. The humerus is the site where many muscles and ligaments are attached, resulting in multiple raised roughening on the bony surface area. An interactive quiz covering Humerus Bone through multiple-choice questions and featuring the iconic GBS illustrations. The shaft of the humerus takes on a characteristically twisted shape via a groove carrying the brachialis and radial nerve. The clinical outcome was assessed on the basis of pain, function, and. To code a diagnosis of this type, you must use specify a 7th character that describes the diagnosis '2-part nondisp fx of surgical neck of left humerus' in more detail. • Femur is the largest bone in the body while humerus is the second largest. The Anatomy of the Shoulder. Muscle Origin, Insertion, and Action List Charts 85 Muscles that act at Hip (to move leg) ACTION ORIGIN INSERTION Pectineus Flexes hip, adducts leg Pubis and pubic ramus From lesser trochanter to superior part of linea aspera of femur Adductor longus Flexes hip, adducts leg Superior ramus of pubis Linea aspera (shorter insertion than adductor. ICD-10 code S42. The metacarpals and phalanges provide a light but strong frame over which the skin is stretched, much as the silk of a kite covers its frame. Anyways, I still have the pain, and it is extremely terrible at night (on a scale of 1 to 10, a 20 at night). A classification of available fixation techniques for three- and four part fractures was done. Despite numerous available treatment strategies, the management of complex proximal humeral fractures remains demanding. There are actually four joints that make up the shoulder. First, your doctor will carefully check the injury to see where and how bad. It is located between the elbow joint and the shoulder. This is the 'ball' part of the ball and socket joint in your shoulder. Deciduous trees loose their leaves. The part of the humerus most commonly fractured is the neck of the bone (at the upper end, just below the head of the humerus). Movement of the humerus is essential to all of the varied activities of the arm, such as throwing, lifting, and writing. , flexor carpi radialis m. Diagram of the humerus and the elbow joint : Trochlea of the humerus articulates with the ulna and capitulum with the radius to form the elbow joint. Most of the shaft's surface is smooth except for the deltoid tuberosity, which is located near the midpoint of the lateral margin. A proximal humerus fracture is when the bone is broken at or near the top, by the shoulder. We are familiar with the exterior body parts like ear, eye, nose, hands, and legs but we might not be knowing about all the internal human organs. on StudyBlue. Distal medial prominence of the humerus. This bone is the bone in your upper arm. —The humerus is ossified from eight centers, one for each of the following parts: the body, the head, the greater tubercle, the lesser tubercle, the capitulum, the trochlea, and one for each epicondyle. The proximal end of the humerus consists of a head, an anatomical neck and Shaft. Please Note: You may not embed one of our images on your web page without a link back to our site. Skeleton pattern on the classroom bulletin board and list names of important bones on strips of paper. 242K - other international versions of ICD-10 S42. Many muscles are used to move the shoulder joint. As soon as you finish answering the quiz questions, you. The part of the humerus most commonly fractured is the neck of the bone (at the upper end, just below the head of the humerus). The humerus is described as having a proximal region, shaft, and distal region. This fracture usually occurs as a result of falling, usually at home, directly on to the shoulder. In otherwise healthy people, most fractures of the humerus are caused by a direct blow to the upper arm. CONCLUSION: The combination of fractures at the proximal and distal parts of the humerus can be termed as "floating arm" injury. The upper extremity is made up of three bones—the humerus (or arm), the radius and the ulna. The much smaller lateral epicondyle of the humerus is found on the lateral side of the distal humerus. Throwing a ball “over-hand” involves movement in all parts of the body. The disk-shaped head of the radius, which is smaller than the base, articulates with the lower end of the humerus (the bone of the upper arm) to form part of the elbow joint. A humerus fracture refers to any break. Operative indications for most displaced proximal humerus fractures in the elderly remain. Badia treats a 4 part proximal humerus fracture with the. A proximal humerus fracture is when the bone is broken at or near the top, by the shoulder. Distally, the humerus becomes flattened. com Delta Shoulder. , flexor carpi ulnaris m. In contrast to proximal humeral fractures that do not involve the tuberosities, three- and four-part fractures are. The Neer classification of proximal humeral fractures is probably the most frequently used system along with the AO classification of proximal humeral fractures. Lateral fibers abduct the arm. Humerus fractures also occur when a direct blow is taken to the arm, which may occur as a. Anthony Romeo, MD, (Chicago, IL) presents a proximal humerus malunion case treated with the Univers Revers™ Total Shoulder System. 6 Label the posterior surface of the right scapula, using the terms provided. The radial head is the knobby end of the radius where it meets the elbow. It is wrench shaped, and articulates with the trochlea of the humerus.