Tensor veli palatini muscle
- Tensor veli palatini muscle
Muscle infobox
Name = Tensor veli palatini muscle
Latin = musculus tensor veli palatini
GraySubject = 243
GrayPage = 1139
Caption = Dissection of the muscles of the palate from behind. (Tens. val. pal. visible at upper right.)
Caption2 = The otic ganglion and its branches. (Tensor veli palatini visible at center left.)
Origin = medial pterygoid plate of the sphenoid bone
Insertion = palatine aponeurosis
Blood =
Nerve = medial pterygoid of mandibular nerve
Action = tension of the soft palate
DorlandsPre = m_22
DorlandsSuf = 12551105
The tensor veli palatini (tensor palati) is a broad, thin, ribbon-like muscle in the head that tenses the soft palate.
tructure
The tensor veli palatini is found lateral to the levator veli palatini muscle.
It arises by a flat lamella from the scaphoid fossa at the base of the medial pterygoid plate, from the spina angularis of the sphenoid and from the lateral wall of the cartilage of the auditory tube.
Descending vertically between the medial pterygoid plate and the medial pterygoid muscle, it ends in a tendon which winds around the pterygoid hamulus, being retained in this situation by some of the fibers of origin of the medial pterygoid muscle.
Between the tendon and the hamulus is a small bursa.
The tendon then passes medialward and is inserted into the palatine aponeurosis and into the surface behind the transverse ridge on the horizontal part of the palatine bone.
Innervation
The tensor veli palatini is innervated by the medial pterygoid nerve, a branch of mandibular nerve, the third branch of the trigeminal nerve (CN V).
Actions
It is associated both with mastication and with the opening of the Eustachian tube through its function of tensing the palate.
=Additional
ee also
* Levator veli palatini
External links
*
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2010.
Look at other dictionaries:
tensor veli palatini muscle — tensor muscle of velum palatinum musculus tensor veli palatini … Medical dictionary
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tensor veli palatini — tensor ve·li pa·la·ti·ni vē .lī .pal ə tī .nī n a ribbonlike muscle of the palate that arises from the scaphoid fossa, from the spine of the sphenoid bone, and from the lateral cartilaginous wall of the eustachian tube, that is attached by a… … Medical dictionary
nervus musculi tensoris veli palatini — [TA] nerve to tensor veli palatini: origin, nerve to medial pterygoid; distribution, tensor veli palatini muscle; modality, motor. Called also n. tensoris veli palatini … Medical dictionary
bursa musculi tensoris veli palatini — [TA] bursa of tensor veli palatini muscle: a bursa between the hamular process of the sphenoid bone and the tendon of the tensor veli palatini … Medical dictionary
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