Anatomical Snuff Box

Anatomical snuff box is a triangular depression on the lateral aspect of wrist immediately distal to the radial styloid process, that becomes prominent when thumb is fully extended.

The Contents of anatomical snuff box are :

- Cephalic vein
- Radial artery
- Superficial radial nerve

Floor of the anatomical snuff box is formed by :

- Radial styloid
- Scaphoid (smooth convex articular surface)
- Trapezium
- Base of First metacarpal

BOUNDARIES OF ANATOMICAL SNUFF BOX :

Lateral/Anterior wall

•   Abductor Pollicis Longus (Radially)
•   Extensor Pollicis Brevis (Medially)

Medial/Posterior wall

•   Extensor Pollicis Longus

Posted in: Anatomy