Saturday, February 27, 2010

51 - 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

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