vestib'ulum, gen. vestib'uli, pi. vestib'ula

[L. an antechamber.] Vestibule, v. ana'le, an invagination on the surface of the embryo where later the anus is formed, v. aor'tae, the portion of the ventricle of the heart immediately below the aortic orifice, v. bur' omenta'lis fBNA], the upper part of the bursa omental is, just within the epiploic foramen (of Winslow), behind the caudate lobe of the liver the posterior surface of which it invests with peritoneum, v. labyrin'thi, the central, somewhat ovoid, cavity of the o eous labyrinth communicating with the semicircular canals behind and the cochlea anteriorly, v. laryu'gis, vestibule of the larynx, false glottis, the upper part of the laryngeal cavity from the aperture to the false vocal cords. V. na'si, the anterior part of the nasal cavity, practically that enclosed by cartilage, v. o'ris, the entrance to the mouth; the space between the lips and the gums and teeth, v. puden'di, V. vaginae, v. vagi'nae [BNA], the space behind the glans clitoridis between the labia minor a, containing the openings of the vagina, urethra, and ducts of Bartholin's glands.