epihyal การใช้

It frequently contains a little cartilage in its center, is often partially ossified ( known as Eagle's Syndrome ), and in many animals forms a distinct bone, the epihyal.
Some of the elements in " Megatherium "'s oral cavity were fused together : a rigidly articulated stylohyal and epihyal, and the apparatus lies farther anteriorly, which together with the elongated, steeply inclined mandibular symphysis, indicates a relatively shorter geniohyoid muscle and thus more limited capacity for tongue protrusion.