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The uvula is a conic projection from the back edge of the middle of the soft palate, composed of connective tissue and muscular fibres. The muscle of the uvula is a pair of muscles that originate in the posterior hard palate and insert in the palatine aponeurosis and the soft tissue of the uvula. The muscle that controls the uvula is called the musculus uvulae, which controls the shape and stiffness of the uvula. The tensor palatini, meanwhile, stiffens the soft palate so that it can be moved more efficiently by muscles such as the levator palatini, which elevates the palate.
| Characteristics | Values |
|---|---|
| Muscles that control the uvula | Musculus uvulae |
| Tensor veli palatini | |
| Levator veli palatini | |
| Muscles that control the position and rigidity of the soft palate | Tensor palatini |
| Levator palatini | |
| Palatoglossus | |
| Palatopharyngeus | |
| Muscles that cover a large area | Tensor veli palatini |
| Muscles that help in swallowing | Tensor veli palatini |
| Levator veli palatini | |
| Muscles that help in relieving pressure buildup in the ear | Tensor veli palatini |
| Muscles that control the shape and stiffness of the uvula | Musculus uvulae |
| Muscles that elevate the palate | Levator veli palatini |
| Muscles that open the eustachian tube | Levator veli palatini |
| Muscles that bring the base of the tongue and soft palate together | Palatoglossus |
| Muscles that shorten the pharynx | Palatopharyngeus |
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What You'll Learn
Muscles that control the uvula
The uvula is a conic projection from the back edge of the middle of the soft palate. It is composed of connective tissue containing racemose glands, muscular fibres, and serous glands, which produce thin saliva. The muscular part of the uvula, known as the musculus uvulae, controls the shape and stiffness of the uvula. The tensor palatini, meanwhile, stiffens the soft palate, allowing it to be moved more efficiently by muscles such as the levator palatini, which elevates the palate. The levator palatini muscle attaches to the cartilage of the auditory canal and the petrous part of the temporal bone. It functions to elevate the palate, drawing it superiorly and posteriorly during swallowing and yawning.
The tensor veli palatini is a paired muscle found in the soft palate. It originates in an area that includes the medial pterygoid plate of the sphenoid, the spine of the sphenoid, and the lateral surface of the cartilage that forms the eustachian (or auditory) tube. When contracted, it tenses the palatal aponeurosis, which anchors other muscles, and opens the eustachian tube. The tensor veli palatini works in conjunction with the levator veli palatini.
The palatoglossus and palatopharyngeus muscles extend from the palate down the sides of the airway to the base of the tongue. They alter the position of the soft palate relative to the tongue and pharynx, respectively. The palatopharyngeus muscle also shortens the pharynx.
The uvula moves together with the soft palate during swallowing to close off the nasopharynx and prevent food from entering the nasal cavity. This change in contour allows the soft palate to adapt closely to the posterior pharyngeal wall. The uvula also has a function in speech. In many languages, a range of consonant sounds, known as uvular consonants, are articulated by creating a constriction of airflow between the uvula and the back of the tongue.
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Muscles that control the position and rigidity of the soft palate
The uvula is a conic projection from the back edge of the middle of the soft palate. It is composed of connective tissue containing racemose glands, muscular fibres, and serous glands, which produce thin saliva. The uvula is controlled by the pharyngeal branch of the vagus nerve. The muscular part of the uvula, known as the musculus uvulae, controls the shape and stiffness of the uvula. It shortens and broadens the uvula, changing the contour of the posterior part of the soft palate. This allows the soft palate to adapt closely to the posterior pharyngeal wall to help close the nasopharynx during swallowing.
There are five muscles that control the position and rigidity of the soft palate. The tensor palatini stiffens the soft palate so that it can be moved more efficiently by other muscles. The levator palatini elevates the palate. The palatoglossus and palatopharyngeus muscles extend from the palate down the sides of the airway to the base of the tongue and alter the position of the soft palate relative to the tongue and pharynx, respectively. The palatopharyngeus muscle is involved in swallowing and is important in OSA pathogenesis.
The tensor veli palatini is a paired muscle that originates over an area that includes the medial pterygoid plate of the sphenoid, the spine of the sphenoid, and the lateral surface of the cartilage that forms the eustachian (auditory) tube. When contracted, it tenses the palatal aponeurosis, which anchors other muscles, and opens the eustachian tube. The levator veli palatini is another small, paired muscle found in the soft palate. It originates on the petrous portion of the temporal bone and the medial side of the eustachian tube. When contracted, it helps open the eustachian tube and elevates the palate.
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Muscles that control the shape and stiffness of the uvula
The uvula is a conic projection from the back edge of the middle of the soft palate, composed of connective tissue containing a number of racemose glands, and some muscular fibres. The muscular part of the uvula, or the musculus uvulae, controls the shape and stiffness of the uvula. It shortens and broadens the uvula, changing the contour of the posterior part of the soft palate. This change in contour allows the soft palate to adapt closely to the posterior pharyngeal wall to help close the nasopharynx during swallowing. Its muscles are controlled by the pharyngeal branch of the vagus nerve.
The tensor palatini stiffens the soft palate so that it can be moved more efficiently by muscles such as the levator palatini, which elevates the palate. The tensor palatini is a paired muscle that originates over an area that includes the medial pterygoid plate of the sphenoid, the spine of the sphenoid, and the lateral surface of the cartilage that forms the eustachian (auditory) tube. When contracted, it tenses the palatal aponeurosis, which anchors other muscles, and opens the eustachian tube.
The levator palatini is a small, paired muscle found in the soft palate that originates on the petrous portion of the temporal bone and the medial side of the eustachian tube. When contracted, it elevates the palate and helps open the eustachian tube.
The palatoglossus and palatopharyngeus muscles extend from the palate down the sides of the airway to the base of the tongue and alter the position of the soft palate relative to the tongue and pharynx, respectively. The palatoglossus brings the base of the tongue and soft palate together, while the palatopharyngeus shortens the pharynx.
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Muscles that elevate the palate
The soft palate is a muscular flap that facilitates speech, breathing, and swallowing. It is responsible for closing off the nasal passages during swallowing and speech production. The palate has five muscles that control its position and rigidity: the tensor veli palatini, levator veli palatini, musculus uvulae, palatopharyngeus, and palatoglossus.
The tensor veli palatini is a paired muscle that originates in the medial pterygoid plate of the sphenoid, the spine of the sphenoid, and the lateral surface of the cartilage that forms the eustachian (auditory) tube. It inserts into a band of connective tissue that runs along the posterior edge of the hard palate. When contracted, it tenses the palatal aponeurosis, which anchors other muscles, and opens the eustachian tube.
The levator veli palatini is another small, paired muscle found in the soft palate. It originates on the petrous portion of the temporal bone and the medial side of the eustachian tube. It inserts into the palatine aponeurosis. When contracted, it helps open the eustachian tube and elevates the palate.
The musculus uvulae is a delicate slip of muscle that attaches to the posterior nasal spine and palatine aponeurosis and inserts into the mucosa of the uvula. It controls the shape and stiffness of the uvula.
The palatopharyngeus and palatoglossus muscles extend from the palate down the sides of the airway, with the palatoglossus in front and the palatopharyngeus behind the tonsil, to the base of the tongue. They alter the position of the soft palate relative to the tongue and pharynx, respectively. The palatoglossus pulls the soft palate towards the tongue and initiates the act of swallowing.
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Muscles that affect the uvula during swallowing
The uvula is a conic projection from the back edge of the middle of the soft palate. It is composed of connective tissue and muscular fibres. During swallowing, the uvula moves with the soft palate to prevent food from entering the nasal cavity. The muscular part of the uvula, the musculus uvulae, controls the shape and stiffness of the uvula. The tensor palatini stiffens the soft palate so that it can be moved more efficiently by muscles such as the levator palatini, which elevates the palate. The tensor veli palatini and levator veli palatini are paired muscles.
The tensor veli palatini tenses the soft palate and opens the Eustachian tube. It attaches to the medial pterygoid plate, the spine of the sphenoid, and the cartilage of the auditory tube, extending to the palatine aponeurosis. The levator veli palatini elevates the palate, drawing it superiorly and posteriorly during swallowing and yawning. It attaches to the cartilage of the auditory canal and the petrous part of the temporal bone, extending anteriorly and inferiorly to attach to the palatine aponeurosis.
The palatoglossus and palatopharyngeus muscles extend from the palate down the sides of the airway to the base of the tongue. They alter the position of the soft palate relative to the tongue and pharynx. The palatopharyngeus muscle also shortens the pharynx. The palatoglossus muscle brings the base of the tongue and soft palate together.
The paired palatopharyngeus muscles pull the soft palate posteriorly. The superior pharyngeal constrictor muscles move the lateral pharyngeal walls medially or the posterior pharyngeal wall anteriorly with contraction.
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Frequently asked questions
The muscle that controls the uvula is called the musculus uvulae.
The musculus uvulae controls the shape and stiffness of the uvula. It shortens and broadens the uvula, changing the contour of the posterior part of the soft palate.
The uvula is involved in swallowing, preventing food and drink from entering the nasal cavity. It also has a function in speech, as some consonant sounds are articulated by creating a constriction of airflow between the uvula and the back of the tongue.
The tensor palatini stiffens the soft palate, and the levator palatini elevates the palate. The palatoglossus and palatopharyngeus muscles extend from the palate down the sides of the airway, altering the position of the soft palate relative to the tongue and pharynx.
