Structure that covers SDF and DDF tendons

Structure that covers SDF and DDF tendons

• A. Carpal extensor hood
• B. Carpal retinaculum
• C. Flexor retinaculum
• D. Carpal ligaments

Answer: (B)

At the wrist, a strong fibrous band forms the roof over the tendons that flex the fingers, creating the carpal tunnel. This band is the carpal retinaculum, also known as the flexor retinaculum. It holds the flexor digitorum superficialis and flexor digitorum profundus tendons in place as they pass into the hand, along with the median nerve. So the structure that covers these tendons is the carpal retinaculum. The extensor hood sits on the back of the hand and relates to the extensor mechanism, not the flexor tendons at the wrist. Carpal ligaments are the connecting tissues between carpal bones and don’t form the tendon cover. The flexor retinaculum is the same structure, just named differently in some texts.

At the wrist, a strong fibrous band forms the roof over the tendons that flex the fingers, creating the carpal tunnel. This band is the carpal retinaculum, also known as the flexor retinaculum. It holds the flexor digitorum superficialis and flexor digitorum profundus tendons in place as they pass into the hand, along with the median nerve. So the structure that covers these tendons is the carpal retinaculum.

The extensor hood sits on the back of the hand and relates to the extensor mechanism, not the flexor tendons at the wrist. Carpal ligaments are the connecting tissues between carpal bones and don’t form the tendon cover. The flexor retinaculum is the same structure, just named differently in some texts.