PSYB10H3 Lecture Notes - Lecture 12: Zygomatic Arch, Sphenoid Bone, Internal Jugular Vein
Document Summary
Rough because of its 3 types of papillae. 1- intrinsic muscles : not attached to bones, arranged into longitudinal , transverse and vertical directions, supplied by hypoglossal nerve, function : change the size and shape of the tongue . 2- extrinsic muscles ( function : change the position of the tongue ) : The upper border of the body and greater cornu of the hyoid bone. The fan-shaped muscle is inserted in the inferior surface of the tongue. Pulls the root of the tongue upward and backward to narrow the orophryngeal isthmus. Pharyngeal plexus ( cranial part of accessory nerve through the vagus nerve. All muscles of the tongue are supplied by the hypoglossal nerve , except palatoglossus by the pharyngeal plexus ( cranial part of accessory nerve through vagus nerve ) Taste sensation : chorda tympani of facial nerve. Floor of the temporal fossa and deep surface of temporal fascia. Lower border and inner surface of zygomatic arch.
