Human Anatomy Vol 1

APPENDIX 1

Musculocutaneous nerve iniury

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Front of arm 3;4

Etbow

Frontofforearm E

Wrist

Palm

1 and2: Paralysis of biceps and brachialis

3. Sensory loss on lateral side of forearm

Axillary nerve injury

Loss of abduction from beginning to 90'

Sensory loss over lower half of deltoid-regimenta/badge sign.

Radial nerve iniury

Median nerve injury

1. No extension of elbow


2. Weak extension of elbow
   3, Wrist drop


3. Sensory loss


4. Weak extetrsion of wrist, metacarpophalarrgeal and interphalangeal
   joints.

1, \,Veak flexion of wrist

2. Loss of pronation of forearm
   3, Loss of flexion of proximal interphalangeal and distal interphalangeal
   joints of index and middle fingers


3. Loss of flexion at interphalangeal joint of thumb
   5, Partial clawing of second and third digits
   6, Loss of thenar eminence


4. Sensory, trophic and vasomotor changes (see Fig. 9.45)

Carpal tunnel

syndrome 5,6,7

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=o

CL

.L

c

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oo

a