The Anatomical Snuff Box

Question 1

Definition

Answer 1

It is a small depression on the posterolateral aspect of the wrist.
It becomes more evident when the thumb is extended.

Question 2

Boundaries

Answer 2

1. Anterolaterally
   a. The tendon of Abductor pollicis longus
   b. The tendon of Extensor pollicis brevis
2. Posteromedially - The tendon of Extensor pollicis longus

Question 3

Roof

Answer 3

Formed by

1. Skin
2. Superficial fascia containing;
   a. the beginning of Cephalic Vein
   b. digital branches of superficial Radial Nerve
3. Deep fascia

Question 4

Floor

Answer 4

1. Styloid process of radius
2. Scaphoid bone
3. Trapezium bone

Question 5

Contents

Answer 5

1. The tendons of Extensor Carpi Radialis Longus and Brevis
2. Radial artery

Question 6

Clinical importance

Answer 6

Pain and swelling in the anatomical snuff box occurs in fracture of the scaphoid bone