4/28/2015 "Gross Anatomy Hand Matthew J. Vilburn"

Question 1

What are the names of the 8 carpal bones?

Answer 1

Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate

Question 2

What forms the hypothenar eminence?

Answer 2

Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti minimi

Question 3

What articulates with the distal ulna?

Answer 3

the distal radius, where it fits into the ulnar notch

Question 4

Which muscle attaches to the tendons of the flexor digitorum profundus?

Answer 4

muscle of the flexor digitorum profundus

Question 5

Which nerve innervates the thenar eminence?

Answer 5

Recurrent branch of median nerve

Question 6

Which nerve innervates the hypothenar eminence?

Answer 6

deep branch of Ulnar nerve

Question 7

Where does the primary contribution to the deep palmar arch come from?

Answer 7

Radial artery

Question 8

What is the innervation of the adductor pollicis?

Answer 8

deep branch of ulnar nerve

Fx to adduct the thumb

Question 9

Which muscles attach to the dorsal digital expansion?

Answer 9

Extensor digitorum
Interossei
Lumbricals
Fx is to increase range of flexion and expansion of digits

Question 10

What deformity will occur with rupture of the lateral bands?

Answer 10

Mallet finger

Question 11

What deformity will occur with rupture of the central band?

Answer 11

The central band is part of the dorsal digital expansion, attaching at the base of the middle phalynx
Boutonniere deformity - ruptured extensor digitorum attachment

Question 12

Where are the interossei muscles?

Answer 12

deep to lumbricals