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vestibule (ves´ti-bul)

1. A small cavity or a space at the entrance of a canal. 2. Specifically, the central, somewhat ovoid, cavity of the osseous labyrinth communicating with the semicircular canals posteriorly and the cochlea anteriorly.vestibulum [NA]; [L. vestibulum]
aortic v. the anterosuperior portion of the left ventricle of the heart immediately below the aortic orifice, having fibrous walls and affording room for the segments of the closed aortic valve.Sibson's aortic v., vestibulum aortae;
buccal v. that part of the oral vestibule related to the cheek.
esophagogastric v. gastroesophageal v
gastroesophageal v. the dilated aboral portion of the esophagus, just above the cardiac orifice; usually it corresponds to the lumen of abdominal part of the esophagus although its relation to the diaphragm is variable.esophagogastric v;
labial v. that part of the oval vestibule related to the lips.
v. of larynx the upper part of the laryngeal cavity from the superior aperture to the vestibular folds, bounded anteriorly by the epiglottis, laterally by themucosa overlying the quadrangular membranes and posteriorly by the mucosa overlying the arytenoid cartilages and arytenoideus muscle.vestibulum laryngis [NA], atrium glottidis, superior laryngeal cavity;
v. of mouth oral v
v. of nose the anterior part of the nasal cavity, especially that enclosed by cartilage.vestibulum nasi [NA];
v. of omental bursa the upper part of the bursa omentalis, just within the epiploic foramen (of Winslow), behind the caudate lobe of the liver.vestibulum bursae omentalis [NA];
oral v. that part of the mouth bounded anteriorly and laterally by the lips and the cheeks, posteriorly and medially by the teeth and/or gums, and above and below by the reflections of the mucosa from the lips and cheeks to the gums.vestibulum oris [NA], buccal cavity, v. of mouth;
Sibson's aortic v. aortic v
v. of vagina the space behind the glans clitoridis and between the labia minora, containing the openings of the vagina, urethra, and ducts of the greater vestibular glands.vestibulum vaginae [NA], vaginal introitus, vestibulum pudendi;


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