Nerve Supply Of Muscles Of Upper Limb

Nerve Supply Of Muscles Of Upper Limb


NERVE SUPPLY OF MUSCLES OF UPPER LIMB

SUMMARY OF NERVE SUPPLY OF MUSCLES OF UPPER LIMB:

Dorsal scapular nerve (C5)

Rhomboid minor, rhomboid major, levator scapulae muscles

Long thoracic nerve (C5, 6, 7)

Serratus anterior muscle

Suprascapular nerve (C5,6)

Supraspinatus & infraspinatus muscles

Nerve to subclavius (C5,6)

Subclavius

Lateral pectoral nerve (C5,6,7)

Pectoralis major muscle

Musculocutaneous nerve (C5,6,7)

Coracobrachialis, biceps brachii, brachialis muscles

Upper subscapular nerve (C5,6)

Subscapularis muscle

Thoracodorsal nerve (C6,7,8)

Latissimus dorsi muscle

Lower subscapular nerve (C5,6)

Subscapularis & teres major muscles

Axillary nerve (C5,6)

Deltoid & teres minor muscles

Radial nerve (C5,6,7,8,T1)

Triceps, anoconeus, part of brachialis, extensor carpi radialis longus

Medial pectoral nerve (C8,T1)

Pectoralis major & minor muscles

Medial cutaneous nerve of arm joined by intercostal brachial nerve from second intercostal nerve (C8,T1,2)

Skin of medial side of arm

Medial cutaneous nerve of forearm (C8;T1)

Skin of medial side of forearm

Ulnar nerve (C8,T1)

Flexor carpi ulnaris & medial half of flexor digitorum profundus, third & fourth lumbricals, interossei

Median nerve (C5,6,7,8;T1)

Pronator teres, flexor carpi radialis,Palmaris longus, abductor pollicis brevis,first two lumbricals, flexor digitorum profundus (lateral half)

Exam Question
 
  • Musculocutaneous nerve supplies coracobrachialis, biceps brachii, and the greater part of the brachialis.
  • Abductor pollicis brevis is supplied by Median nerve .
  • Deltoid & teres minor muscles supplied by  Axillary nerve (C5,6).
  • In deltoid paralysis Axillary nerve is involved.
  • Teres major muscles supplied by Lower subscapular nerve.
  • Pectoralis major & minor muscles is supllied by Medial pectoral nerve.
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