The Hand (Week 4)

Question 1

Which tendons pass through the carpal tunnel? (4+4+1)

Answer 1

4 tendons of flexor digitorum superficialis
4 tendons of flexor digitorum profundus
1 tendon of flexor pollicis longus

Question 2

List the 8 hand bone mnemonic device

Answer 2

Some Lovers Try Positions That They Cannot Handle

Question 3

List the 8 hand bones in rows

Answer 3

Scaphoid, Lunnate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate

Question 4

List the 5 groups of intrinsic hand muscles

Answer 4

Dorsal interossei
Palmar interossei
Lumbeical
Thenahypothenar

Question 5

Name origin and insertion of the interoseous muscles of the hand?

Answer 5

Originates at the base of metacarpal and its neighbour
Inserts to the distal phalynx

Question 6

Action of interosseous hand muscles?

Answer 6

When one contracts = ulnar/radial deviation
When both contract, finger flexes

Question 7

HAND
Understand the interosseous muscles positioning

Answer 7

1st interosseaous = between thumb and index
2nd = between index and middle
3rd = between middle and ring
4th = between ring and pinkie

Question 8

HAND
What is the action of the lumbricals?

Answer 8

Extension of the finger
Flexion of the knuckles

Question 9

HAND
What is the action of the thenar muscles

Answer 9

Thumb flexion, extension, abduction and opposition

Question 10

HAND
What is the action of the hypothenar muscles?

Answer 10

Control pinkie flexion, abduction and opposition

Question 11

HAND
what is the action if the dorsal interossei muscles?

Answer 11

Abduction between the fingers