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Tuesday, December 27, 2011

Anatomical Snuff Box

[anatomical_snuff_box.JPG]


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

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