Answer:
The median nerve is one of the structures that passes deep into the flexor retinaculum of the hand. Bursa radialis. The bursa of the ulna. The flexor pollicis longus is located below the flexor retinaculum and lateral to the flexor digitorum superficialis. The flexor pollicis longus has its origin in the middle portion of the volar radius and its insertion in the base of the thumb's distal phalanx.
