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Arm Lecture

Gross Anatomy of the Arm

QuestionAnswer
Coracobrachialis Prox. Tip of coracoid process
Coracobrachialis Dist. Middle 1/3 of medial humerus
Coracobrachialis Act. Flexes and ADducts arm at Glenohumeral Joint
Coracobrachialis Inn. Musculocutaneous Nerve (pierces coracobrachialis)
Biceps Brachii Short Head Prox. Coracoid Process
Biceps Brachii Short Head Dist. Bicipital Aponeurosis
Biceps Brachii Short Head Act. Forearm Supination
Biceps Brachii Short Head Inn. Musculocutaneous Nerve
Biceps Brachii Long Head Prox. Supraglenoid Tubercle
Biceps Brachii Long Head Dist. Tuberosity of Radius
Biceps Brachii Long Head Act. Elbow Flexion when Supinated
Biceps Brachii Long Head Inn. Musculocutaneous Nerve
Brachialis Prox. Distal 1/2 of anterior humerus
Brachialis Dist. Coranoid Process and Ulnar Tuberosity
Brachialis Act. Elbow Flexion ONLY
Brachialis Inn. Musculocutaneous Nerve
Triceps Brachii Long Head Prox. Infraglenoid Tubercle
Triceps Brachii Medial Head Prox. Posterior surface of humerus
Triceps Brachii Lateral Head Prox. Posterior surface of humerus
Triceps Brachii Dist. Olecranon Process and Forearm Fascia
Triceps Brachii Act. Elbow Extension and Humeral Head Stabilization (Long Head Only)
Triceps Brachii Inn. Radial Nerve
Anconeus Prox. Lateral epicondyle of humerus
Anconeus Dist. Lateral Olecranon and Superior/Posterior Ulna
Anconeus Act. Assists in Extension, Stabilizes Elbow, ABducts Ulna During Pronation
Brachial Artery Branches Deep Brachial Artery and Superior/Inferior Ulnar Collateral Arteries
Brachial Artery Path From Teres Major to Neck of Radius in Cubital Fossa
4 Major Nerves of Arm Median, Ulnar, Musculocutaneous, Radial
Musculocuteous Nerve Supplies anterior compartment of brachial region, pierces coracobrachialis, becomes lateral antebrachial cutaneous nerve
Radial Nerve Supplies Posterior Brachial Region
Contents of Cubital Fossa Brachial Artery and Terminal Branches, Brachial and Median Cubital Veins, Median Nerve, Radial Nerve, Medial/Lateral Antebrachial Cutaneous Nerves
Created by: frankfrank05