What is the function of the tensor Veli palatini?
The words veli palatini are Latin for “veil or curtain of the palate”. This etiology explains the function of this muscle which is the tension of the palatine aponeurosis of the soft palate and opening the pharyngeal opening of the auditory tube during swallowing or yawning.
What is the tensor Veli palatini?
The tensor veli palatini is a flat, fusiform muscle that, like the levator, attaches to the petrous part of the temporal bone, the pterygoid bones, and the lateral lamina of the guttural pouch. 67. Its tendon is reflected around the hamulus of the pterygoid bone, where it is lubricated by a bursa.
What is the function of the tensor tympani muscle?
The tensor tympani is attached to the malleus; it is innervated by a branch of the Vth cranial nerve. The action of both muscles is to decrease sound transmission through the middle ear. The effect of contraction of the middle ear muscles is generally to reduce transmission of sound through the middle ear.
Where is levator veli palatini muscles?
soft palate
The levator veli palatini muscle is found in the soft palate of the mouth. It arises from the under surface of the apex of the petrous part of the temporal bone, and from the surface inferolateral to the medial lamina of the cartilage of the Eustachian tube. It does not connect with the medial lamina.
Where is the levator veli palatini muscles located?
Levator veli palatini muscle (Musculus levator veli palatini) Levator veli palatini is a paired cylindrical muscle situated lateral to the choanae of nasal cavity, spanning from the petrous part of temporal bone to the superior part of palatine aponeurosis.
What is the function of the tensor tympani and stapedius muscles quizlet?
What is the function of the Stapedius and Tensor Tympani Muscles? These muscles contract in response to loud sounds, thereby reducing the transmission of sound to the inner ear.
What type of muscle is the tensor tympani?
intratympanic muscles
Tensor tympani is a tiny, but long paired muscle of the middle ear. Together with the stapedius, it belongs to the group of intratympanic muscles. Tensor tympani occupies a bony canal found superior to the osseous part of the auditory tube (pharyngotympanic tube; Eustachian tube).
Can you control your tensor tympani?
It has been related to the attenuation of sounds produced during the mastication process. Voluntary control over the tensor tympani muscle is an extremely rare event. However, an understanding of the potential audiometric effects of its contraction could aid the diagnosis of hearing disorders.
What is levator veli palatini innervated by?
The levator veli palatini muscle which is innervated by a branch of the glossopharyngeal nerve showed rhythmic spontaneous movement in rats. Cutting the branch supplying LVP of the glossopharyngeal nerve caused cessation of the spontaneous movement of the levator veli palatini muscle.
What Innervates tensor levator palatini?
The tensor veli palatini muscle is innervated by the mandibular nerve through the branch to the medial pterygoid muscle. The other soft palate muscles are innervated by the contribution of the vagus nerve to the pharyngeal plexus. Almost all soft palate tumors arise on the oral surface.
What nerve innervates the levator veli palatini?
The Lesser Palatine Nerve Innervates the Levator Veli Palatini Muscle.
What is the function of Stapedius muscle?
Stapedius muscle is termed to be the smallest skeletal muscle in human body, which has a major role in otology. Stapedius muscle is one of the intratympanic muscles for the regulation of sound.
Which part of the ear conducts sound waves to the tympanic membrane?
pinna
The auricle (pinna) is the visible portion of the outer ear. It collects sound waves and channels them into the ear canal (external auditory meatus), where the sound is amplified. The sound waves then travel toward a flexible, oval membrane at the end of the ear canal called the eardrum, or tympanic membrane.
What is the origin of the tensor tympani muscle?
Tensor tympani muscle
Origin | Cartilaginous part of auditory tube Greater wing of sphenoid Petrous part of temporal bone Semianal for tensor tympani muscle |
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Insertion | Handle of malleus near the root |
Action | Pulls the handle of the malleus medially Tenses the tympanic membrane |
What muscles raise soft palate?
The levator veli palatini muscle emerges from the eustachian tube and the petrous temporal bone before attaching to the palatine aponeurosis, this muscle functions to elevate the soft palate during swallowing to prevent the entry of food into the nasopharynx.
What muscle makes up the uvula?
The muscle of the uvula or musculus uvulae is one of the five paired muscles of the soft palate and forms the bulk of the uvula.