Advertisements

What are the boundaries of anatomical snuff box?

  • It is a triangular depression seen on the lateral aspect of dorsum of hand when the thumb is extended.

location of anatomical snuff box

  • It is bounded by:
    • Laterally by  tendons of abductor pollicis longus (APL) and extensor pollicic brevis(EPB).
    • Medially by the tendon of extensor pollicis longus (EPL).
    • Roof is formed by skin and superficial fascia containing cephalic vein and superficial branch of radial nerve.
    • Floor is formed by scaphoid and trapezium bones.
    • Proximally it is limited by styloid process of radius.

What is/are the content/s of anatomical snuff box?

  • Content : Radial artery (cephalic vein and superficial branch of radial nerve are present in its roof).

anatomical snuff box

Applied Aspect

Tenderness in the anatomical snuff box indicates fracture of scaphoid bone.

The cephalic vein at this site is often used for giving intravenous fluids.

Pulsation of the radial artery can be felt here.

Leave a Reply

Your email address will not be published. Required fields are marked *