Upper Exremity-General Flashcards
What muscles does the dorsal scapular n. (C4-5) innervate?
Levator scapulae
Rhomboids
What muscles does the medial pectoral n. (C8-T1) innervate?
Pectoralis major (sternocostal)
Pectoralis minor
What muscles does the upper subscapular n. (C5-6) innervate?
Subscapularis
What muscles does the suprascapular n. (C4-6) innervate?
Supraspinatus
Infraspinatus
What are the two cutaneous branches of the medial cord of the brachial plexus?
Medial cutaneous nerve of the forearm (C8-T1)
Medial cutaneous nerve of the arm (C8-T1)
What muscles does the axillary n. (C5-6) innervate?
Deltoids
Teres minor
What nerve besides the suprascapular n. comes off of the upper trunk and what does it innervate?
N. to the subclavius
Innervates subclavis m.
What muscle does the long thoraic n. innervate and what are it’s spinal roots?
Latissimus dorsi
C5-C7
What muscles does the lower subscapular n innervate and what are it’s spinal roots?
C5-6
Subscapularis
Teres major
What are the three branches off the posterior chord of the brachial plexus?
Lower subscapularis
Uppersubscapularis
Thoracodorsal
What does the thoracodorsal n. (C6-C8) innervate?
Latissimus dorsi
What does the ulnar n. innervate and what are it’s spinal roots?
Flexor carpi ulnaris
Flexor digitorum profundus 4th & 5th digits
C7-T1
What muscles does the musculocutaneous n. (C5-7) innervate?
Biceps brachii
Brachialis
Coracobrachialis
What muscles 11 does the radial nerve (C5-T1) innervate?
Anaconeous
Triceps brachii
Abductor pollicis longus
Brachioradialis
Extensor carpi radialis brevis & longus
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi
Extensor indicis
Extensor pollicis brevis & longus
Supinator
What nerve branches off of the median n? What does it innervate?
Anterior interosseous n.
Flexor pollicis longus
Pronator quadratus