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Anatomical Snuffbox Content & Boundaries

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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.

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Anatomical snuffbox content

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.

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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.

Guides

Rectus Abdominis: Origin, Insertion, Action & Nerve Supply

C1 Spine: Anatomy, Bony Landmark

Flexor Digitorum Longus: Origin, Insertion, Action & Nerve Supply

Extensor Indicis: Origin, Insertion, Nerve Supply & Action

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Contents of the Anatomical Snuff Box

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

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