Sesamoid bones are bones that form within tendons. The hand has a variable number of sesamoid bones. These small bones are most common in the flexor tendons of the hand.

Process is a term used in anatomy to describe a projection on a bone. It comes from the Latin pro- meaning forward and cessus for gone. It is an old term that can be traced back to the writings of the early anatomist Celsus.

Os sesamoideum

Os sésamoïde