(From the hyoid bone, and the tongue). The nameof the muscle of the tongue. It rises from the basis, but chiefly from each cornu of the os hyoides, running laterally and forwards, to shorten the tongue. This muscle is sometimes divided into three: basio glossus; hypsilo or ypsioglossus, or hypsiloides; the chondro glossus; and the ceratoglos-eus. Douglas observes, that it rises fleshy from three different places; its first origin is broad and carnous from the cornua of the hyois; this is properly the cerataglos-sus: its second head comes from part of the basis of this bone, and its name is hasioglossus: the third beginning is derived from the cartilaginous appendage of the hyoides, sometimes called chondroglossus: these three unite, and, their fibres running in the same direction, they are inserted broad and thin near the root of the tongue laterally. The use of each is to draw the tongue obliquely to one side; but if both act at once, the tongue is pulled directly backwards into the mouth. Douglas adds, that in some subjects he hath observed a great part of the muscles to arise from the basis of the bone, and in some others few or none of their fibres originated from that part.