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| Torus tubarius | |
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| Auditory tube, laid open by a cut in its long axis. (Torus tubarius not labeled.) | |
| Gray's | subject #230 1043 |
| Dorlands/Elsevier | t_14/12813973 |
The base of the cartilaginous portion of the Eustachian tube lies directly under the mucous membrane of the nasal part of the pharynx, where it forms an elevation, the torus tubarius or cushion, behind the pharyngeal orifice of the tube.
Two folds run inferiorly:
- posteriorly, the vertical fold of mucous membrane, the salpingopharyngeal fold, stretches from the lower part of the torus; it contains the Salpingopharyngeus muscle.
- anteriorly, the second and smaller fold, the salpingopalatine fold, stretches from the upper part of the torus to the palate; it contains the levator veli palatini muscle. The tensor veli palatini is lateral to the levator and does not contribute the fold, since the origin is deep to the cartilaginous opening.
External links
- SUNY Labs 31:14-0102
- MedEd at Loyola grossanatomy/dissector/labs/h_n/nasal/na4_1.html
- Roche Lexicon - illustrated navigator, at Elsevier 25420.000-1
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 As such, some of the information contained herein may be outdated.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.
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Wikipedia content modification information:
- This page was last modified on 3 June 2008, at 14:10.
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