Wrist:

• A. the flexor retinaculum runs between the styloid process of the radius and the pisiform and hook of hamate
• B. the median nerve passes beneath the flexor retinaculum between flexor digitorum superficialis and flexor carpi ulnaris
• C. the ulnar nerve lies on the flexor retinaculum with the ulnar artery on its ulnar side
• D. the wrist joint involves the radius, ulna, scaphoid, lunate and triquetral bones
• E. the radiocarpal joint is separated from the distal radioulnar joint by a triangular fibrocartilage