What is palatopharyngeal folds?
: the more posterior of the two ridges of soft tissue at the back of the mouth on each side that curves downward from the uvula to the side of the pharynx forming a recess for the palatine tonsil as it diverges from the palatoglossal arch and that is composed of part of the palatopharyngeus with its covering of mucous …
What does the Palatopharyngeus muscle do?
It attaches superiorly to the hard palate and palatine aponeurosis and inferiorly to the lateral wall of the pharynx. Its function is to tense the soft palate and pull the pharyngeal walls superiorly, anteriorly, and medially during swallowing, effectively closing off the nasopharynx from the oropharynx.
What nerve Innervates the palatopharyngeus?
Two major anatomical textbooks mention that both palatopharyngeus muscle (PP) and the levator veli palatini muscle (LVP) are innervated by the cranial part of the accessory nerve (CN XI) via the pharyngeal plexus and the tensor veli palatini muscle (TVP) is innervated by the mandibular nerve [7, 8].
What is the origin of the Palatopharyngeus muscle?
| Palatopharyngeus muscle | |
|---|---|
| Origin | Palatine aponeurosis and hard palate |
| Insertion | Upper border of thyroid cartilage (blends with constrictor fibers) |
| Artery | Facial artery |
| Nerve | Pharyngeal branch of vagus nerve |
What is Passavant’s Ridge?
Passavant’s ridge is a mucous elevation situated behind the floor of the naso-pharynx.
What is anterior tonsillar pillar?
Anterior tonsil pillar This is the fold of tissue just in front of the tonsils. It is created by the palatoglossus muscle which extends from the soft palate down to the tongue.
How is the palatopharyngeus related to the pharynx?
In the soft palate this muscle forms the posterior (palatopharyngeal) arch, while as a muscle of the pharynx, the palatopharyngeus elevates the pharynx superiorly, anteriorly and medially. Thus sharing a common function with all the other pharyngeal muscles; assisting deglutition .
Where does the palatopharyngeal muscle demarcate the fauces?
It encloses the palatopharyngeus muscle and forms the posterior margin of the tonsillar fossa. It also demarcates the isthmus of the fauces from the oropharynx. Type of ridge of mucous membrane that passes downward from posterior margin of soft palate to lateral wall of pharynx.
Where is the Arcus palatopharyngeus located in the body?
one of a pair of ridges or folds of mucous membrane that pass downward from the posterior margin of the soft palate to the lateral wall of the pharynx. It encloses the palatopharyngeus muscle and forms the posterior margin of the tonsillar fossa. It also demarcates the isthmus of fauces from the oropharynx.
Is the stylopharyngeus a muscle of the head?
The stylopharyngeus is a muscle of the head and neck, and one of the inner longitudinal muscles of the pharynx.