Hand Picture Cards

Question 1

Name the structure. Note: This is a palmar view

Answer 1

Palmar radiocarpal ligament

Question 2

Answer 2

Dorsal radiocarpal ligament

Question 3

Answer 3

Flexor retinaculum aka transverse carpal ligament

Question 4

Answer 4

Flexor retinaculum aka transverse carpal ligament

Question 5

Answer 5

Median nerve

Question 6

Answer 6

Deep motor branch of the ulnar nerve

Question 7

Answer 7

Ulnar nerve proximal to superficial and deep branches

Question 8

Answer 8

Palmar aponeurosis

1. Longitudinal fibers
2. Transverse fibers

Question 9

Answer 9

Flexor digitorum superficialis tendons

Question 10

Answer 10

Flexor digitorum profundus tendons

Question 11

Answer 11

Flexor digitorum superficialis

Question 12

Answer 12

Flexor digitorum profundus

Question 13

Answer 13

1. Flexor digitorum profundus
2. Flexor digitorum superficialis

Question 14

Answer 14

Flexor pollicis longus

Question 15

Answer 15

Common synovial sheath of the flexors

Question 16

Answer 16

Extensor digiti minimi

Question 17

Answer 17

Extensor digitorum

Question 18

Answer 18

1. Extensor pollicis longus
2. Extensor pollicis brevis

Question 19

Name the artery.

Answer 19

Superficial palmar arch

Question 20

Answer 20

Extensor indices

Question 21

Name the artery.

Answer 21

Deep palmar arch

Question 22

Name the arteries

Answer 22

Common palmar digital arteries

Question 23

On which joint do these lateral bands of extensor muscles act to extend?

Answer 23

The DISTAL interphalangeal joint. That way they can move ventrally within the finger during flexion so as to not stretch so much.

Question 24

Name the nerves.

Answer 24

Proper palmar digital branches of the median nerve

Question 25

Name the muscles, action, and innervation.

Answer 25

Dorsal interossei (1st, 2nd, 3rd, 4th) Abduct the fingers (DAB). Ulnar innervation. All are bipennate.

Question 26

Name each muscle, which eminence they belong to, their function, and innervation.

Answer 26

1. Abductor digiti minimi - acts to abduct the little finger. 2. Flexor digiti minimi brevis - acts to flex the little finger at the MP joint. These two are both innervated by the deep motor branch of the ulnar nerve and are part of the hypothenar eminence. 3. Flexor pollicis brevis - acts to flex the thumb at both the MP joint and CMC joint. 4. Abductor pollicis brevis - acts to abduct the thumb. These are innervated by the recurrent branch of the median nerve and are part of the thenar eminence.

Question 27

Name the muscle, which eminence it belongs to, innervation and action.

Answer 27

Opponens pollicis. Thenar eminence. Innervated by the recurrent branch of the median nerve. Acts to oppose the thumb (which includes flexion, abduction, and medial rotation).

Question 28

Name the muscles, action, and innervation.

Answer 28

Palmar interossei (1st, 2nd, and 3rd) Adduct the fingers (PAD). Ulnar innervation. All are unipennate.

Question 29

Name the muscle, innervation, action.

Answer 29

Adductor pollicis. Innervated by the deep motor branch of the ulnar nerve. Action is to adduct the thumb CMC joint. Note that this is NOT a thenar muscle.

Question 30

Name the muscles, action, and innervation.

Answer 30

Lumbrical muscles. Flex the fingers at the MP joint. 1 & 2 = median nerve, unipennate 3 & 4 = ulnar nerve, bipennate

Question 31

Name the muscle, action, innervation, and which eminence it belongs to.

Answer 31

Opponens digiti minimi. Innervated by the deep branch of the ulnar nerve. Action is to flex and rotate the little finger CMC joint. Hypothenar eminence.