Question

carpal tunnel pressure is sometimes relieved by surgically excising part or all of which structure?
palmar aponeurosis
extensor retinaculum
flexor retinaculum
extensor aponeurosis
median nerve

Explanation:

Carpal tunnel syndrome is caused by compression of the median nerve in the carpal tunnel. The carpal tunnel is roofed by the flexor retinaculum. Surgical excision of part or all of the flexor retinaculum relieves the pressure on the median nerve. The palmar aponeurosis is a different structure in the palm. The extensor retinaculum is on the dorsal side of the wrist. The extensor aponeurosis is related to extensor muscles. Excision of the median nerve would not relieve pressure but rather cause nerve damage.

Answer:

Flexor retinaculum