Elbow Functions

CHAPTER 5 STRUCTURE AND FUNCTION OF THE ELBOW AND FOREARM knotty The build up complex allows movements of pronation and supination motions that rotate the palm up(a) or downward. The fortify consists of two articulations: the proximal and distal radio receiver ulnar knock. Joints of the cubital joint and forearm complex 1.Humeroulnar joint 2.Humeroradial joint 3.proximal radioulnar joint 4.distal radioulnar joint The four bones that tinge to the function of the elbow and forearm complex 1. scapula 2.Distal humerus 3.Ulna 4.Radius Scapula Scapula has three gaunt features that are important to the muscles of the elbow 1.Coracoid process-serves as the proximal bond for the pitiful headman of the biceps 2.Supraglenoid tubercle- serves as the proximal attachment for the long head of the biceps 3.Infraglenoid tubercle- marks the proximal attachment for the long head of the triceps Distal Humerus 1.Trochlea- spool shaped twist regain on the medial sid e of the distal humerus that articulates with the ulna to form the humeroulnar joint 2.Coronoid fossa- a teeny-weeny pit located expert superior to the trochlea that accepts the coronoid process of the ulna when the elbow is encompassingy flexed. 3.

Capitulum- just lateral to the trochlea, articulates with the head of the r to form the humeroradial joint 4.Medial epicondyle- the prominate acoustic projection of bone on the medial side of the distal humerus. This slowly palpable prominence serves as the proximal attachment for some of the radiocarpal joint flexor muscles, the pronator teres, and the conf irmatory ligament of the elbow 5.Lateral ep! icondyle- less prominent, proximal attachment for most wrist extensor muscles, the supinator muscle, and lateral substantiative ligament of the elbow. Immediately proximal to some(prenominal) epicondyles are the medial and lateral supracondylar ridges. 6.Olecranon fossa- is the comparatively deep, all-encompassing pit, located on the posterior side of the distal humerus. With the elbow fully extended, a portion...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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