Nasopharynx
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Overview
| Nasopharynx | |
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| Front of nasal part of pharynx, as seen with the laryngoscope. | |
| Latin | pars nasalis pharyngis |
| Gray's | subject #244 1141 |
| Nerve | maxillary nerve |
| MeSH | Nasopharynx |
| Dorlands/Elsevier | p_07/12617279 |
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The nasopharynx (nasal part of the pharynx) lies behind the nose and above the level of the soft palate: it differs from the oral and laryngeal parts of the pharynx in that its cavity always remains patent (open).
In front it communicates through the choanae with the nasal cavities.
On its lateral wall is the pharyngeal ostium of the auditory tube, somewhat triangular in shape, and bounded behind by a firm prominence, the torus or cushion, caused by the medial end of the cartilage of the tube which elevates the mucous membrane.
A vertical fold of mucous membrane, the salpingopharyngeal fold, stretches from the lower part of the torus; it contains the Salpingopharyngeus muscle.
A second and smaller fold, the salpingopalatine fold, stretches from the upper part of the torus to the palate.
Behind the ostium of the auditory tube is a deep recess, the pharyngeal recess (fossa of Rosenmüller).
On the posterior wall is a prominence, best marked in childhood, produced by a mass of lymphoid tissue, which is known as the pharyngeal tonsil.
Above the pharyngeal tonsil, in the middle line, an irregular flask-shaped depression of the mucous membrane sometimes extends up as far as the basilar process of the occipital bone; it is known as the pharyngeal bursa.
Additional images
 Nose and nasal cavities |
 External and middle ear, opened from the front. Right side. |
See also
- nasopharyngeal carcinoma - cancer of the nasopharynx
External links
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 As such, some of the information contained herein may be outdated.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.
de:Nasopharynxnl:Nasofarynx ja:咽頭鼻部 uk:Носоглотка
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
