isthmus tubae auditoriae
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isthmus tubae auditivae — [TA] isthmus of auditory tube: the narrowest part of the auditory tube, at the junction of the pars ossea and the pars cartilaginea of the tube. Called also i. tubae auditoriae [TA alternative] … Medical dictionary
isthmus — 1. A constriction in the embryonic neural tube delineating the anterior portion of the rhombencephalon, the future metencephalon, form the more rostrally located mesenephalon. 2. SYN: rhombencephalic i.. [G. isthmos] i. of aorta SYN … Medical dictionary
ostium — A small opening, especially one of entrance into a hollow organ or canal. SEE ALSO: orifice, opening, os, mouth (2). [L. door, entrance, mouth] o. abdominale tubae uterinae [TA] SYN: abdominal o. of uterine tube … Medical dictionary
Sulcus — From the Latin for a groove, furrow, or trench. In medicine, there are many sulci (plural of sulcus) as, for example, the superior pulmonary sulcus. * * * 1. [TA] One of the grooves or furrows on the surface of the brain, bounding the several… … Medical dictionary
