口蓋咽頭筋
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/28 22:46:10」(JST)
[Wiki en表示]
| Palatopharyngeus muscle |
|
Dissection of the muscles of the palate from behind (palatopharyngeus muscle labeled as pharyngopalatinus labeled at top center, below choanae)
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| Details |
| 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 |
| Actions |
Pulls pharynx and larynx upward |
| Identifiers |
| Latin |
Musculus palatopharyngeus |
Dorlands
/Elsevier |
m_22/12550054 |
| TA |
A05.2.01.105 |
| FMA |
46666 |
| Anatomical terms of muscle
[edit on Wikidata]
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The palatopharyngeus (palatopharyngeal or pharyngopalatinus) muscle is a small muscle in the roof of the mouth.
It is a long, fleshy fasciculus, narrower in the middle than at either end, forming, with the mucous membrane covering its surface, the palatopharyngeal arch.
Contents
- 1 Structure
- 2 Function
- 3 Additional images
- 4 References
- 5 External links
Structure
It is separated from the palatoglossus muscle 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 uvulae.
- 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 veli palatini muscles, and joins in the middle line the corresponding part of the opposite muscle.
Passing lateralward and downward behind the palatine tonsil, the palatopharyngeus 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.
Innervation
Motor innervation of this muscle is provided through the pharyngeal plexus of the CN X (vagal nerve), SVE fibers. Palatopharyngeus is innervated by cranial part of the accessory nerve via the pharyngeal plexus
Function
The palatine velum is slightly raised by the levator veli palatini and made tense by the tensor veli palatini; the palatopharyngeus muscles, by their contraction, pull the pharynx upward over the bolus of food and nearly come together, the uvula filling up the slight interval between them.
By these means the bolus is prevented from passing into the nasopharynx; at the same time, the palatopharyngeus muscles form an inclined plane, directed obliquely downward and backward, along the under surface of which the bolus descends into the lower part of the pharynx.
Additional images
-
Cadaver dissection showing the palatopharyngeus muscle
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
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Wikimedia Commons has media related to Palatopharyngeus muscle. |
- -1308229552 at GPnotebook
- Anatomy figure: 31:04-05 at Human Anatomy Online, SUNY Downstate Medical Center
- Anatomy photo:34:04-0104 at the SUNY Downstate Medical Center
- Anatomy diagram: 05287.011-1 at Roche Lexicon - illustrated navigator, Elsevier
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Muscles of the head
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| Extraocular |
- Oblique
- Rectus
- superior
- inferior
- medial
- lateral
- Levator palpebrae superioris
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| Masticatory |
- Masseter
- Temporalis
- Pterygoid
- Fascia
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| Facial |
| Ear |
- Auricular
- anterior
- superior
- posterior
- Temporoparietalis
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| Scalp/eyelid |
- Occipitofrontalis
- Orbicularis oculi
- Corrugator supercilii
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|
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| Nose |
- Procerus
- Nasalis
- Depressor septi nasi
- Levator labii superioris alaeque nasi
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|
| Mouth |
- Levator anguli oris
- Levator labii superioris
- Zygomaticus
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- Orbicularis oris
- Risorius
- Buccinator
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- Depressor anguli oris
- Depressor labii inferioris
- Mentalis
- Transversus menti
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| Soft palate |
- Veli palatini
- Musculus uvulae
- Palatopharyngeus
- Palatoglossus
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| Tongue |
| Extrinsic |
- Genioglossus
- Hyoglossus
- Styloglossus
- Palatoglossus
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| Intrinsic |
- Superior longitudinal
- Inferior longitudinal
- Transverse
- Vertical
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|
|
UpToDate Contents
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English Journal
- Secondary Palatal Elongation: Improvement in Speech Quality.
- Çelik M1.
- The Journal of craniofacial surgery.J Craniofac Surg.2017 Oct;28(7):e616-e617. doi: 10.1097/SCS.0000000000003609.
- PMID 28708641
- Evaluation of airway protection: Quantitative timing measures versus penetration/aspiration score.
- Kendall KA1.
- The Laryngoscope.Laryngoscope.2017 Oct;127(10):2314-2318. doi: 10.1002/lary.26653. Epub 2017 May 7.
- PMID 28480638
- Characterization and mechanisms of the supragastric belch in the cat.
- Lang IM1, Medda BK2, Shaker R2.
- American journal of physiology. Gastrointestinal and liver physiology.Am J Physiol Gastrointest Liver Physiol.2017 Sep 1;313(3):G220-G229. doi: 10.1152/ajpgi.00142.2017. Epub 2017 Jun 15.
- PMID 28619729
Japanese Journal
- ヒト咽頭挙筋群の起始・走行ならびに停止に関する肉眼解剖学的研究
- 角田 佳折
- 四国歯学会雑誌 20(1), 13-26, 2007-06
- … Using 50 cadavers, the pharyngeal longitudinal muscles, the palatopharyngeus, salpingopharyngeus and stylopharyngeus, were bilaterally dissected out as the full length of muscles. … The palatopharyngeus formed the base of the soft palate. … The salpingopharyngeus arose from the Eustachian tube cartilage and immediately joined the superficial portion of the palatopharyngeus, from which finding the salpingopharyngeus was regarded as one of the origins of the superficial portion. …
- NAID 110006561004
- 田松 裕一,峰 和治,島田 和幸
- 鹿児島大学歯学部紀要 26, 21-26, 2006-03-25
- … Palatoglossus and palatopharyngeus originate from lower part than soft palate, and make the wall of fauces. …
- NAID 110004994349
- 妹尾 日登美,古郷 幹彦,向井 紀文,大谷 朋弘,野村 公子,松矢 篤三
- 日本口腔外科学会雑誌 47(5), 316-319, 2001-05-20
- … On operation, the right side of the levator veli palatini and the palatoglossus muscle were absent, while the tensor veli palatini and palatopharyngeus muscle were present. …
- NAID 10009459872
Related Links
- In some cases, an increase in the thickness of the lateral pharyngeal wall is commensurate with the increase in muscle mass in the hyoglossus, styloglossus, palatoglossus, palatopharyngeus, and pharyngeal constrictor muscles ...
- The palatopharyngeus muscle, also known as the pharyngopalatinus muscle, is a long bundle of tissue. When these muscles contract, they pull the pharynx up and cover the bolus of food. They almost meet, but the uvula fills up the ...
Related Pictures
★リンクテーブル★
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- 英
- palatopharyngeus (K)
起始
停止
神経
機能
カテゴリ
口蓋の筋＞:口蓋の筋
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.