SLHS 3116 Study Guide - Final Guide: Hyoid Bone, Super Bowl Xxxv, Motor Unit
14 Feb 2020
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Lateral view of the oral and nasal cavities: The levator veli palatini muscle is responsible for contraction of the velum: the levator veli palatini (levator palati) is a thick, rounded muscle situated lateral to the choanae. It arises from the under surface of the apex of the petrous part of the temporal bone and from the medial lamina of the cartilage of the auditory tube. The four closure patterns (oral nasal coupling) of the vp port: velopharyngeal port: opening between the oral and nasal cavities; size of vp port can be adjusted; opened during nasal breathing; no universal pattern for achieving. Coronal: only velar movement, uses levator veli palatini, velar elevation: the velum moves upward and backward in a knee- like configuration. Circular: velar and lateral pharyngeal wall movement, uses both superior constrictor and levator veli palatini. Circular with passavant"s ridge: movement from all four sides, uses superior constrictor and levator veli palatini, 3 views of vp closure:
