Anatomical Snuffbox Content & Boundaries

The anatomical snuffbox is a triangular depression found on the radial, dorsal aspect of the hand at the level of the carpal bones. Anatomical snuffbox is best seen when the thumb is abducted. The name arises from the use of this surface for placing and then sniffing powdered tobacco.

Borders of the Anatomical Snuff Box

Lateral Border: Tendons of the abductor pollicis longus and extensor pollicis brevis.
Medial Border: Tendon of the extensor pollicis longus.

Floor: Carpal bones; scaphoid and trapezium.

Roof: Skin.

The base of 1st metacarpal can be palpated distally and the radial styloid process can be palpated proximally.

Contents of the Anatomical Snuff Box

• Superficial branch of the radial nerve
•  Radial artery
• Cephalic vein (variable)