Palatopharyngeus muscle
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| Palatopharyngeus muscle | ||
|---|---|---|
| Dissection of the muscles of the palate from behind. (Pharyngopalatinus labeled at top center, below choanae.) | ||
| Latin | musculus palatopharyngeus | |
| Gray's | subject #243 1139 | |
| Origin: | palatine aponeurosis and hard palate | |
| Insertion: | ||
| Blood: | Facial artery | |
| Nerve: | vagus nerve and cranial accessory nerve | |
| Action: | pulls pharynx and larynx | |
| Dorlands/Elsevier | m_22/12550054 | |
The pharyngopalatinus (palatopharyngeus) is a long, fleshy fasciculus narrower in the middle than at either end, forming, with the mucous membrane covering its surface, the pharyngopalatine arch.
It is separated from the Glossopalatinus by an angular interval, in which the palatine tonsil is lodged. It arises from the soft palate, where it is divided into two fasciculi by the Levator veli palatini and Musculus uvulæ.
- The posterior fasciculus lies in contact with the mucous membrane, and joins with that of the opposite muscle in the middle line.
- The anterior fasciculus, the thicker, lies in the soft palate between the Levator and Tensor, and joins in the middle line the corresponding part of the opposite muscle.
Passing lateralward and downward behind the palatine tonsil, the Pharyngopalatinus joins the Stylopharyngeus, and is inserted with that muscle into the posterior border of the thyroid cartilage, some of its fibers being lost on the side of the pharynx and others passing across the middle line posteriorly, to decussate with the muscle of the opposite side.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
