flexor

The main flexor is the biceps, the large muscle which may be seen standing out in front of the arm when a weight is raised.

Dorsal flexion is checked by the flexor tendons and dorsal ligaments.

It is seen most frequently upon the extremities, especially the flexor surfaces.

In the recent state it is covered with fibro-cartilage for the passage of the flexor perforans.

This will reveal the median nerve itself situated upon the red fibres of the flexor metacarpi internus muscle.