Hand Anatomy

Question 1

Radial nerve supplies:

Answer 1

-Dorsum of hand: thumb till middle finger

Question 2

Median Nerve supplies:

Answer 2

-Palmar side of hand: From thumb till middle of ring finger

Question 3

Ulnar Nerve supplies:

Answer 3

-Palmar side of hand: last digit and half of ring finger

Question 4

Elbow joint Flexion:

Answer 4

• By biceps brachialis

Musculocutaneous Nerve

Question 5

Elbow Extension:

Answer 5

-By triceps

Radial Nerve

Question 6

Supination:

Answer 6

-By supinators

Radial Nerve

Question 7

Pronation:

Answer 7

-By pronators (quadrates and teres)

Median nerve

Question 8

Wrist extension:

Answer 8

• By Extensor Carpi Radialis (Radial Nerve)

- By Extensor Carpi Ulnaris (Radial Nerve)

Question 9

Wrist Flexion:

Answer 9

• By Flexor Carpi Radialis (Median Nerve)

- By Flexor Carpi Ulnaris (Ulnar Nerve)

Question 10

Thenar Muscle:

Answer 10

-Mostly by Median Nerve

Question 11

Hypothenar Muscles:

Answer 11

-Ulnar nerve

Question 12

-Metacarpophalangeal Joint Extension:

Answer 12

-By Extensor Digitorum Communis

Radial Nerve

Question 13

Thumb Extension:

Answer 13

-By Extensor Policis Longus

Radial Nerve

Question 14

Thumb Flexion:

Answer 14

-By Flexor Policis Longus

Median nerve

Question 15

Lumbricals (Intrinsic muscle of hands)

Answer 15

-Median and Ulnar nerve

Question 16

Interossi Muscles

Answer 16

-Ulnar nerve

Question 17

Finger Flexion:

Answer 17

-Flexor Digitorum Superficialis
(Median nerve)

-Flexor Digitorum Profundus
(Median nerve and ulnar nerve)