Muscles of the hand

Question 1

Innervation of abductor digiti minimi

Answer 1

Lateral plantar nerve.

Question 2

Innervation of abductor pollicis brevis

Answer 2

Recurrent branch of median nerve.

Question 3

Innervation of the adductor pollicis

Answer 3

Ulnar nerve deep branch

Question 4

Innervation of dorsal interossei

Answer 4

Lateral plantar nerve.

Question 5

Innervation of the flexor digiti minimi brevis

Answer 5

Ulnar nerve deep branch

Question 6

Innervation of flexor pollicis brevis

Answer 6

Recurrent branch of the median nerve

Question 7

Innervation of the lumbricals

Answer 7

1st lumbrical by medial plantar nerve.

Question 8

Innervation of opponens digiti minimi

Answer 8

Ulnar nerve deep branch

Question 9

Innervation of opponens pollicis

Answer 9

Recurrent branch of median nerve

Question 10

Innervation of palmar interossei

Answer 10

Ulnar nerve deep branch

Question 11

Innervation of palmaris brevis

Answer 11

Superficial branch of ulnar nerve

Question 12

Which muscles in the hand get their blood supply from ulnar artery?

Answer 12

flexor digiti minimi brevis
opponens digiti minimi
palmaris brevis

Question 13

Blood supply of abductor digiti minimi

Answer 13

Lateral plantar artery

Question 14

Blood supply to abductor pollicis brevis

Answer 14

superficial palmar branch of radial artery

Question 15

Blood supply to adductor pollicis

Answer 15

Deep palmar arterial arch

Question 16

Blood supply to dorsal interossei

Answer 16

dorsal metatarsal artery from arcuate dorsalis pedis artery

Question 17

Blood supply to flexor pollicis brevis

Answer 17

Superficial palmar branch of radial artery.

Question 18

Blood supply to the lumbricals

Answer 18

Medial and lateral plantar artery

Question 19

Blood supply to Opponens pollicis

Answer 19

Superficial palmar branch of radial artery

Question 20

Blood supply to palmar interossei

Answer 20

Palmar metacarpal arteries

Question 21

Function of ADM

Answer 21

abducts and flexes little toe and supports lateral longitudinal arch

Question 22

Function of APB

Answer 22

Abducts thumb

Question 23

Function of Adductor P

Answer 23

Adducts the thumb

Question 24

Function of DI

Answer 24

abducts 2nd to 4th toes from axis of 2nd toe and assists in flexing proximal phalanx and extending middle and distal phalanx

Question 25

Function of FDMB

Answer 25

Flexes the carpometacarpal and metacarpophalangeal joints of the 5th digit

Question 26

Function of FPB

Answer 26

Flexes the carpometacarpal and metacarpophalangeal joints of the thumb

Question 27

Function of Lumbrical s

Answer 27

Aid in flexion of MTP joints and theoretically extend the IP joints

Question 28

Function of ODM

Answer 28

Opposes the 5th digit

Question 29

Function of OP

Answer 29

Opposes the thumb

Question 30

Function of PI

Answer 30

flexes the metacarpophalangeal, extends proximal and distal interphalangeal joints and adducts digits 1, 2, 4, & 5 (adduction of the digits of the hand is in reference to the midline of the 3rd digit)

Question 31

Function of Palmaris B

Answer 31

draws the skin of the ulnar side of the hand toward the center of the palm

Question 32

What are the thenar muscles of the hand?

Answer 32

Abductor pollicis brevis Opponens pollicis Adductor pollicis Flexor pollicis brevis

Question 33

What are the hypothenar muscles of the hand?

Answer 33

Opponens digiti minimi, Flexor digiti minimi brevis, Abductor digiti minimi.