The<unk>  (also called<unk>  or lentiform bone) is a small knobbly, pea-shaped wrist bone.
The<unk>  is found in the proximal row of the carpus. It is located where the ulna (inner bone of the forearm) joins the carpus (wrist). It articulates only with the triquetral.
It is a sesamoid bone.
The<unk>  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 carpal bones and is spheroidal in form.
The etymology derives from the Latin pīsum which means "pea."
Pisiform bone
Zygomatic bone
Hyoid bone
Parietal bone
Sphenoid bone
Occipital bone
Capitate bone
Vertebra prominens