| tonsillar | Relating to a tonsil, especially the palatine tonsil. Synonym: amygdaline. (05 Mar 2000) |
|---|---|
| tonsillar branch of glossopharyngeal nerve | <anatomy, nerve> Branches of glossopharyngeal nerve conducting sensory fibres from the palatine tonsillar fossa. Synonym: rami tonsillares nervi glossopharyngei. (05 Mar 2000) |
| tonsillar branch of the facial artery | <anatomy, artery> Primary blood supply to palatine tonsil, with extensive anastomoses with other tonsillar arteries. Synonym: ramus tonsillaris arteriae facialis. (05 Mar 2000) |
| tonsillar calculus | A calcareous concretion in a distended tonsillar crypt. Synonym: tonsillar calculus, tonsillith. Origin: tonsillo-+ G. Lithos, stone (05 Mar 2000) |
| tonsillar crypt | One of the variable number of deep recesses that extend into the palatine and pharyngeal tonsils from the free surface where they open at the tonsillar fossa. Synonym: crypta tonsillaris. (05 Mar 2000) |
| tonsillar fossa | The depression between the palatoglossal and palatopharyngeal arches occupied by the palatine tonsil. Synonym: fossa tonsillaris, amygdaloid fossa, sinus tonsillaris. (05 Mar 2000) |
| tonsillar fossulae | The small pits at the openings of the tonsillar crypts onto the medial surface of the tonsil. Synonym: fossulae tonsillares. (05 Mar 2000) |
| tonsillar herniation | Herniation of the cerebellar tonsils through the foramen magnum. (05 Mar 2000) |
| tonsillar ring | The broken ring of lymphoid tissue, formed of the lingual, faucial, and pharyngeal tonsils. Synonym: Bickel's ring, tonsillar ring, Waldeyer's throat ring. (05 Mar 2000) |
| Amberg's lateral sinus line | A line dividing the angle formed by the anterior edge of the mastoid process and the temporal line. (05 Mar 2000) |
| aneurysm of sinus of Valsalva | A congenital thin-walled tubular out pouching usually in the right or non-coronary sinus with an entirely intracardiac course that may rupture into the right or rarely the left heart chambers to form an aortocardiac fistula. (05 Mar 2000) |
| aortic sinus | The space between the superior aspect of each cusp of the aortic valve and the dilated portion of the wall of the ascending aorta, immediately above each cusp. Synonym: sinus aortae, Petit's sinus, Valsalva's sinus. Arlt's sinus, an inconstant depression on the lower portion of the internal surface of the lacrimal sac. Barber's pilonidal sinus, pilonidal sinus occurring in barbers, usually in the web between the fingers, due to the burying of exogenous hairs by the alternate loosening and tightening of tissues of the hand by the manipulation of scissors. (05 Mar 2000) |
| aortic sinus aneurysm | Abnormal dilation of one or more of the three aortic sinuses situated behind the three aortic valve cusps. (05 Mar 2000) |
| apertura sinus frontalis | One of a pair of openings in the floor of the frontal sinuses in the nasal part of the frontal bone, through which the frontal sinuses communicate with the ethmoidal infundibulum via the frontonasal duct. Synonym: apertura sinus frontalis. (05 Mar 2000) |
| apertura sinus sphenoidalis | One of the pair of openings in the body of the sphenoid bone through which the sphenoid sinuses communicate with the sphenoethmoidal recess of the nasal cavity. Synonym: apertura sinus sphenoidalis, sphenoidal sinus aperture. (05 Mar 2000) |