click below
click below
Normal Size Small Size show me how
Brachium
Question | Answer |
---|---|
Biceps brachii | Supinates forearm; strongly flexes supinated elbow; weak shoulder flexor; checks upward translation of humeral head during deltoid abduction |
Brachialis | Strongly flexes forearm in all postions |
Coracobrachialis | Helps to flex and adduct arm weakly |
Triceps brachii | Extends the forearm powerfully; it is chief extensor of forearm; long head steadies head of abducted humerus |
Anconeus | Assists triceps in extending forearm; stabilizes elbow joint; abducts ulna during pronation |
Radial collateral (off Deep Brachial) | Radial current (off Radial) |
Superior ulnar collateral(off Brachial) | Posterior ulnar recurrent(off Ulnar) |
What nerve innervates biceps brachii, Coracobrachialis, Brachialis? | Musculocutaneous (C5,C6) |
What nerve innervates Triceps brachii and Anconeus? | Radial (C5-T1) |
Inferior ulnar collateral (off Brachial) | Anterior ulnar recurrent (off Ulnar) |
Middle collateral (off Deep Brachial) | Posterior interosseous recurrent (off Common Interosseous) |
Anterior Compartment | Biceps brachii and Brachialis |
Posterior compartment | Triceps brachii and Anconeus |
Medial brachial cutaneous and Medial antebrachial cutaneous | Medial Cord |
Lateral superior cutaneous | Axillary |
Lateral inferior cutaneous and Posterior cutaneous | Radial |
Lateral antebrachial cutaneous | musculocutaneous |