intrinsic muscles of the tongue

intrinsic muscles of the tongue

the superior longitudinal, inferior longitudinal, transverse, and vertical muscles, which alter the shape of the tongue by lengthening and shortening it, curling and uncurling its apex and edges, and flattening and rounding its surface.
References in periodicals archive ?
1) Hypoglossal neuropathy paralyzes both extrinsic and intrinsic muscles of the tongue, and may result from many pathologic processes such as primary skull base neoplasms (e.
Although, relatively little is known about the motor neurons innervating the intrinsic muscles of the tongue, a recent tract tracing study in Cynomolgus monkey has revealed that motor neurons of the medial divisions of the hypoglossal nucleus innervate tongue muscles that are oriented in planes transverse to the long axis of the tongue, whereas motor neurons of the lateral divisions innervate tongue muscles that are oriented parallel to this axis (Sokoloff & Deacon, 1992).