One of these muscles, the tensor veli palatini, also acts to open the eustachian tube.
2.
These muscles are innervated by the pharyngeal plexus via the vagus nerve, with the exception of the tensor veli palatini.
3.
The tube is opened during swallowing by contraction of the tensor veli palatini and levator veli palatini, muscles of the soft palate.
4.
The tensor veli palatini is innervated by cranial nerve 5 branch V3 ( which is the mandibular division of the trigeminal cranial nerve ).
5.
It serves as the insertion for the Tensor veli palatini and Levator veli palatini, and the origin for the Musculus uvulae, Palatopharyngeus, and Palatoglossus.
6.
Near its posterior margin may be seen a more or less marked transverse ridge for the attachment of part of the aponeurosis of the Tensor veli palatini.
7.
The mandibular nerve immediately passes between tensor veli palatini, which is medial, and meningeal branch ( nervus spinosus ) and the nerve to medial pterygoid from its medial side.
8.
It is narrower and longer than the lateral pterygoid plate and curves lateralward at its lower extremity into a hook-like process, the pterygoid hamulus, around which the tendon of the tensor veli palatini glides.
9.
It is in relation, laterally, with the trunk of the mandibular nerve at the point where the motor and sensory roots join; medially, with the cartilaginous part of the auditory tube, and the origin of the tensor veli palatini; posteriorly, with the middle meningeal artery.
10.
From the plexus, branches are distributed to the muscles and mucous membrane of the pharynx ( except the stylopharyngeus, which is innervated by the glossopharyngeal nerve ( CN IX ) ) and the muscles of the soft palate, except the Tensor veli palatini, which is supplied by the nerve to tensor veli palatini, a branch of the nerve to medial pterygoid ( which itself is a branch of the mandibular nerve-CNV / 3 ).
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