![]() ![]() posteriorly: olecranon bursae, triceps brachii tendon.anteriorly: biceps brachii tendon, brachialis muscle, median nerve, brachial artery.intratendinous olecranon bursa: variably lies in the triceps brachii tendon 8.subtendinous olecranon bursa: lies between olecranon and triceps brachii tendon 8.superficial olecranon bursa: lies between the olecranon and the subcutaneous tissue 4,5.There are three fat pads of the elbow, which sit between the two layers of the joint capsule, making them extrasynovial 3,4: There are several synovial folds of the elbow. The volume of the joint capsule is 24-30 mL 9. Distally, it attaches to the annular ligament of the radius and coronoid process of the ulna 1,3,5. The joint capsule has two layers, deep and superficial, and attaches proximally to the radial, coronoid and olecranon fossae. runs from just inferior to the radial notch of the ulna to insert to the medial surface of the radial neck 11.thickening of the inferior aspect of the joint capsule.runs from tuberosity of the ulna to just distal to radial tuberosity 5.inconstant thickening of supinator muscle fascia and functionally insignificant 5.lateral (radial) collateral ligament complex.medial (ulnar) collateral ligament complex.primary: pronator teres, pronator quadratus.the pivot component (allowing pronation-supination) is formed by the radiohumeral articulation and the proximal radioulnar joint.secondary: pronator teres, palmaris longus, flexor digitorum superficialis, extensor carpi radialis longus and brevis.primary: biceps brachii, brachialis, brachioradialis.the hinge component (allowing flexion-extension) is formed by the ulnohumeral articulation.The elbow is a trochoginglymoid (combination hinge and pivot) joint 4, 5: In full extension, the olecranon process is received by the olecranon fossa on the posterior aspect of the humerus 1. In full flexion, the coronoid process is received by the coronoid fossa and the radial head is received by the radial fossa on the anterior surface of the humerus. radioulnar: radial head with the radial notch of the ulna ( proximal radioulnar joint).ulnohumeral: trochlea of the humerus with the trochlear notch (with separate olecranon and coronoid process articular facets) of the ulna.radiohumeral: capitellum of the humerus with the radial head.The elbow joint is made up of three articulations 2,3:
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