Arm Articulations/ Ligaments Flashcards
Coracobrachialis Insertion
Middle of medial humerus
Coracobrachialis Origin
Coracoid process
Coracobrachialis action
Adducts and flexes arm at shoulder joint
Biceps brachii Origin
Long head: supra glenoid tubercle of scapula( through bicipital groove)
Short head: coracoid process of scapula
Biceps brachii Insertion
Radial tuberosity of humerus
Biceps brachii action
Flexes arm at the shoulder; flexes forearm at the elbow
Brachialis Origin
Distal 1/2 of anterior surface of humerus
Brachialis insertion
Tuberosity and coronoid process of ulna
Brachialis action
Flexes forearm
Triceps brachii origin
Long head: infraglenoid tubercle of scapula
Lateral head: proximal half of lateral and posterior humerus
Medial head: distal 2/3 of medial and posterior humerus
Triceps brachii insertion
Posterior surface of olecranon process of ulna
Triceps Brachii action
Extend forearm at the elbow joint
Anconeus origin
Lateral epicondyle of humerus
Anconeus insertion
Lateral side of the olecranon process and proximal 1/4 of posterior ulna
Anconeus action
Extends the forearm at the elbow
