Carpal Tunnel

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Anatomical Snuff Box

Distal to the styloid process of the radius at the base of the thumb, the tendons of the abductor pollicis longus, extensor pollicis brevis and extensor pollicis longus form a triangular interval

Has its own tunnel within the lateral attachment of the flexor retinaculum. It DOES NOT pass through the carpal tunnel

Flexor Carpi Radialis

Structures passing through the Carpal Tunnel

Flexor Pollicis Longus, Flexor Digitorum Superficialis & Profundus and Median Nerve

Encases forearm muscle tendons as they descend through the wrist and into the hand and digits

Tubular Synovial Sheaths

A Common Sheath encloses all the Superficialis and Profundus Tendons

Ulnar Bursa

Decrease in size of the carpal tunnel resulting in compression of the median nerve

Carpal Tunnel Syndrome Incision of the flexor retinaculum may palliate

The tendon of Flexor Carpi Radialis

Has a short sheath

Structures Anterior to Carpal Tunnel

Palmaris Longus, Flexor Carpi Ulnaris and Ulnar Nerve & Artery

A sheath surrounds the tendon of the Flexor Pollicis Longus

Radial Bursa


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