Henry Gray (18251861). Anatomy of the Human Body. 1918.
and to the triangular and pisiform bones; laterally, to the lateral margin of the radius; and, in its passage across the wrist, to the ridges on the dorsal surface of the radius.
FIG. 424 The mucous sheaths of the tendons on the back of the wrist. (See enlarged image)
The Mucous Sheaths of the Tendons on the Back of the Wrist.Between the dorsal carpal ligament and the bones six compartments are formed for the passage of tendons, each compartment having a separate mucous sheath. One is found in each of the following positions (Fig. 424): (1) on the lateral side of the styloid process, for the tendons of the Abductor pollicis longus and Extensor pollicis brevis; (2) behind the styloid process, for the tendons of the Extensores carpi radialis