ANATOMY

Question 1

Hand Compartments

Answer 1

10 in total:
Hypothenar
Thenar
Adductor Pollicis
Dorsal Interosseous (4)
Volar (palmar) Interosseous (3)

Question 2

List the 6 extensor compartments

Answer 2

First: Abductor Pollicis longus, Extensor Pollicis brevis
Second: Extensor carpi radialis longus, Extensor carpi radialis brevis
Third: Extensor pollicis longus
Fourth: Extensor digitorum communis, Extensor indicis propius
Fifth: Extensor digiti minimi
Sixth: Extensor carpi ulnaris

Question 3

Extensor zones

Answer 3

9 zones
Odd numbers over joints
Zone I starting over the DIP joint
Even number between joints

Question 4

List the 6 flexor tendons

Answer 4

Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus
Flexor pollicis longus
Flexor digitorum superficialis
Flexor digitorum profundus

Question 5

Describe the Flexor Tendon Zones

Answer 5

5 zones
Zone I: Distal to FDS insertion
Zone II: FDS to A1 pulley “no man’s land”
Zone III: A1 pulley to carpal tunel
Zone IV: Carpal tunel
Zone V: Proximal to the carpal tunel

Question 6

Deep Spaces of Hand

Answer 6

Thenar
Hypothenar
Midpalmar
Interdigital web spaces

Question 7

List the 8 carpal bones

Answer 7

Triquetral
Pisiform
Lunate
Scaphoid
Trapezium
Trapezoid
Capitate
Hamate

Question 8

Thenar Muscles

Answer 8

Abductor pollicis brevis
Opponens pollicis
Flexor pollicis brevis

Question 9

Inervation of Intrinsic Muscles

Answer 9

Median n. inervates “LOAF”
Lateral two lumbricals
Opponens Pollicis Brevis
Abductor Pollicis Brevis
Flexor Pollicis Brevis
All others are ulnar nerve