Carpal Tunnel Roof And Floor

The roof is made of the transverse carpal ligament.

Carpal tunnel roof and floor.

The carpal tunnel is the passageway through which the median nerve and finger flexor tendons pass from the forearm into the hand. The roof of the tunnel is a strong band of connective tissue called the transverse carpal ligament. The deep carpal arch forms a concave surface which is converted into a tunnel by the overlying flexor retinaculum transverse carpal ligament. The floor and walls are composed of the wrist bones which are called carpal bones see figure 1.

The carpal tunnel is a passageway in the wrist formed by eight carpal wrist bones which make up the floor and sides of the tunnel and the transverse carpal ligament a strong ligament streatching across the roof of the tunnel. The carpal tunnel is formed by two layers. The floor of the carpal tunnel is formed by eight small carpal bones and the transverse carpal ligament forms the roof of the tunnel. This tunnel has a roof a floor and two walls.

Carpal tunnel syndrome usually results in numbness and tingling in the distribution of the median nerve. Because of its enclosed nature pressure can be generated on the nerve. The floor and sides of the tunnel are formed by small wrist bones called carpal bones. The carpal tunnel is a fibro osseous canal that acts as a passageway from the forearm to the anterior hand.

It is found in the anterior wrist. Gross anatomy boundaries superficial border roof. Inside the tunnel are nine flexor tendons which bend down your fingers and thumb. This pressure causes dysfunction of the nerve that results in symptoms.

A deep carpal arch and a superficial flexor retinaculum. In a normal wrist there is adequate space for the median nerve and flexor tendons in the carpal tunnel. Because these boundaries are very rigid the carpal tunnel has little capacity to stretch or increase in size. Concave on the palmar side forming the base and sides of the carpal tunnel.