The pisiform may be known by its small size and by its presenting a single articular facet. It is situated on a plane anterior to the other bones of the carpus; it is spheroidal in form, with its long diameter directed vertically. Shown is the left pisiform, showing posterior and lateral surfaces.
GalleriesHuman Skeletal System
Gray, Henry Gray's Anatomy: Descriptive and Applied (Philadelphia: Lea & Febiger, 1913) 198