- Torus tubarius
Infobox Anatomy
Name = Torus tubarius
Latin =
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Caption = Auditory tube, laid open by a cut in its long axis. (Torus tubarius not labeled.)
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The base of the cartilaginous portion of theEustachian tube lies directly under themucous membrane of thenasal 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, thesalpingopharyngeal fold , stretches from the lower part of the torus; it contains theSalpingopharyngeus muscle .
*anteriorly, the second and smaller fold, thesalpingopalatine fold , stretches from the upper part of the torus to the palate; it contains thelevator veli palatini muscle. Thetensor veli palatini is lateral to the levator and does not contribute the fold, since the origin is deep to the cartilaginous opening.External links
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