What 3 muscles make up the anatomical snuff box?

The anatomical snuffbox (AS) is a depression in wrist’s radial part, limited by the tendons of abductor longus muscle, extensor pollicis brevis and extensor pollicis longus muscles (Latarjet & Ruíz-Liard, 2007).

What goes through the snuff box?

Contents. The main contents of the anatomical snuffbox are the radial artery, a branch of the radial nerve, and the cephalic vein. The radial artery crosses the floor of the anatomical snuffbox in an oblique manner. It runs deep to the extensor tendons.

What makes up the borders of the anatomical snuffbox?

The tendons of two of the outcropping muscles make up the lateral border of the anatomical snuffbox; they are the abductor pollicis longus and extensor pollicis brevis. The medial border of the snuffbox is made up of the remaining outcropping muscle, the extensor pollicis longus.

Why is the anatomical snuffbox important?

Clinical Significance The anatomical snuffbox is clinically significant when there is pain with palpation within its boundaries. Scaphoid fractures account for two-thirds of all carpal bone fractures and are commonly misdiagnosed.

Where is the anatomical snuff box what are the boundaries?

Boundaries. The medial border (ulnar side) of the snuffbox is the tendon of the extensor pollicis longus. The lateral border (radial side) is a pair of parallel and intimate tendons, of the extensor pollicis brevis and the abductor pollicis longus.

Why is it called anatomical snuff box?

The anatomical snuffbox is visible with ulnar deviation of the wrist and extension and abduction of the thumb. Its name was derived from using the depression as a means of placement for the inhalation of powdered tobacco, otherwise known as dry snuff, and was first described in the medical literature in 1850.

What is the meaning of a snuffbox?

Definition of snuffbox : a small box for holding snuff usually carried about the person.

What is the snuffbox test?

To perform this test, the examiner should apply compression in the anatomical snuffbox which will also compress the scaphoid (navicular) bone. There are other structures present in the snuff box such as the radial nerve, radial artery, the scapho-trapezial joint, and the radial collateral ligament.

What is anatomical snuffbox?

The anatomical snuffbox is a surface anatomy feature described as a triangular depression on the dorsum of the hand at the base of the thumb. The anatomical snuffbox is visible with ulnar deviation of the wrist and extension and abduction of the thumb.