Wrist and hand anatomy

Question 1

What side of the hand is the flexor retinaculum on ?

Answer 1

palmar side

Question 2

What muscles make up the thenar eminence?

Answer 2

Abductor pollicis brevis, flexor pollicis brevis, opponens pollicis

Question 3

what is the nerve supply to the thenar eminence

Answer 3

median nerve

Question 4

What muscles make up the HYPOthenar eminence?

Answer 4

abductor digiti minimi, flexor digiti minimi and opponens digiti minimi

Question 5

what is the nerve supply to the hypothenar eminence

Answer 5

ulnar

Question 6

What tendons form the anatomical snuff box?

Answer 6

2 lateral
1 medial

Most lateral - abductor pollicus longus
then: extensor pollicus brevis

Medial: extensor pollicus longus

Question 7

what are the contents of the anatomical snuff box?

Answer 7

Radial artery, radial vein, cephalic vein

Question 8

what structures run through the carpal tunnel?

Answer 8

4 tendons of flexor digitorum profundus
4 tendons of flexor digitorum superficialis
median nerve
flexor pollicis longus

Question 9

Describe the sensory innervation of the palmar surface of the hand

Answer 9

3 and half = median nerve

1 and half = ulnar nerve

Question 10

Describe the sensory innervation of the dorsal surface of the hand

Answer 10

1 and half = ulnar

rest = radial nerve

Question 11

List the carpal bones of the hand

Answer 11

Radial to ulnar side:
top row = trapezium, trapezoid, capitate, hamate, triquetrum
lower row = scaphoid, lunate, triquetrum

Question 12

What does the pisiform articulate with and what side?

Answer 12

Palmar side

articulates with the triquetrum