Week 6 - The Anatomical Snuffbox

Question 1

What makes up the roof of the anatomical snuffbox?

Answer 1

Skin

Question 2

What makes up the medial border of the anatomical snuffbox?

Answer 2

The tendon of extensor pollicis longus

Question 3

What makes up the floor of the anatomical snuffbox?

Answer 3

The scaphoid and the trapezium

Question 4

What makes up the proximal border of the anatomical snuffbox?

Answer 4

The styloid process of the radius

Question 5

What makes up the lateral border of the anatomical snuffbox?

Answer 5

The tendons of extensor pollicis brevis and abductor pollicis longus

Question 6

What is the contents of the anatomical snuffbox?

Answer 6

The radial artery - crosses floor obliquely
The radial nerve (superficial branch)
The cephalic vein

Question 7

What two things can be palpated in the anatomical snuffbox?

Answer 7

The radial artery pulse

The scaphoid

Question 8

What is the anatomical snuffbox, and when is it best seen?

Answer 8

A triangular depression found on the lateral aspect of the dorsum of the hand. Best seen when the thumb is abducted.