Adductor pollicis, radial artery in the hand, ulnar nerve in the hand (dave's notes)

Question 1

Describe the general location of adductor pollicis

Answer 1

Lies deeply in the palm in contact with metacarpals and interossei. Two heads, transverse and oblique.

Question 2

What is the origin and insertion of the transverse head of adductor pollicis?

Answer 2

Origin: Arises from the whole length of the 3rd metacarpal
Insertion: Inserts at the ulnar sesamoid of the thumb

Question 3

What is the origin and insertion of the oblique head of adductor pollicis?

Answer 3

The oblique head arises from the 2nd and 3rd metacarpal to insert at the ulnar sesamoid

Question 4

What is the nerve supply to adductor pollicis?

Answer 4

The deep branch of the ulnar nerve

Question 5

What is the course of the radial artery in the hand?

Answer 5

Slopes across the anatomical snuffbox over trapezium, to between the 1st dorsal interossei and adductor pollicis

Question 6

What branches does the radial artery give off in the hand? What is its destination thereafter?

Answer 6

Arteria radialis indicis

Princeps pollicis, then passes to the deep palmar arch

Question 7

What is the deep palmar arch?

Answer 7

An arterial arcade (usually complete 1cm proximal to the superficial palmar arch) the combines with the deep branch of the ulnar artery

Question 8

How does the ulnar nerve enter the hand?

Answer 8

Beneath the FCU tendon, then upon the flexor retinaculum, where it divides into superficial and deep branches

Question 9

What does the superficial branch of the ulnar nerve supply?

Answer 9

Palmaris brevis, then continues on as the digital nerves to the ulnar 1 1/2 fingers

Question 10

What does the deep branch of the ulnar nerve supply?

Answer 10

The three hypothenar muscles, two lumbricals, all interossei, and the two heads of adductor pollicis