MRCEM Notes

Flexor Retinaculum

The flexor retinaculum of the hand has both the thenar and hypothenar muscles arising from it. Its attachments are:

Medial attachments: Pisiform and the hamate
Lateral attachments: Scaphoid and the trapezium


Diagram illustrating flexor retinaculum


Wikipedia

Diagram illustrating carpal bones arrangement

Wikipedia
Full-size image