| Tymp | tympanum, tympanic |
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| membrane of tympanum | <anatomy> The eardrum. (13 Nov 1997) |
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| roof of tympanum | The roof of the middle ear, formed by the thinned anterior surface of the petrous portion of the temporal bone. Its anterior edge is inserted into the petrosquamous fissure so that it can be seen as a wedge of bone subdividing that fissure into a squamo tympanic and a petrotympanic fissure. Synonym: roof of tympanum. (05 Mar 2000) |
| cord of tympanum | chorda tympani |
| pyramid of tympanum | A conical projection posterior to the vestibular window in the middle ear; it is hollow and contains the stapedius muscle. Synonym: pyramid of tympanum, pyramidal eminence, pyramis tympani. (05 Mar 2000) |
| tympanum | 1. <anatomy> Loosely, the tympanic membrane (membrana tympani). 2. The tympanic cavity (cavitas tympanica). Origin: L., Gr. Tympanon = drum (13 Nov 1997) |
| pelvic promontory | The most prominent anterior projection of the base of the sacrum. Synonym: pelvic promontory, promontorium ossis sacri, promontory of the sacrum. (05 Mar 2000) |
| sacral promontory | The most prominent anterior projection of the base of the sacrum. Synonym: pelvic promontory, promontorium ossis sacri, promontory of the sacrum. (05 Mar 2000) |
| promontory | Origin: L. Promonturium, promunturium; pro before + mons, montis, mountain: cf. F. Promontoire. See Mount. 1. <physics> A high point of land or rock projecting into the sea beyond the line of coast; a headland; a high cape. "Like one that stands upon a promontory." (Shak) 2. <anatomy> A projecting part. Especially: The projecting angle of the ventral side of the sacrum where it joins the last lumbar vertebra. A prominence on the inner wall of the tympanum of the ear. Source: Websters Dictionary (01 Mar 1998) |
| promontory common iliac lymph nodes | Nodes of the common iliac group located at the promontory of the sacrum. Synonym: nodi lymphatici promontorii, nodi lymphatici iliaci communes promontorii. (05 Mar 2000) |
| promontory of the sacrum | The most prominent anterior projection of the base of the sacrum. Synonym: pelvic promontory, promontorium ossis sacri, promontory of the sacrum. (05 Mar 2000) |
| promontory of tympanic cavity | A rounded eminence on the labyrinthine wall of the middle ear, caused by the first coil of the cochlea. Synonym: promontorium cavi tympani, tuber cochleae, tympanic promontory. (05 Mar 2000) |
| sulcus of promontory of tympanic cavity | A narrow branched groove running vertically over the surface of the promontory in the middle ear, lodging the tympanic plexus. Synonym: sulcus promontorii cavitatis tympanicae. (05 Mar 2000) |
| tympanic promontory | A rounded eminence on the labyrinthine wall of the middle ear, caused by the first coil of the cochlea. Synonym: promontorium cavi tympani, tuber cochleae, tympanic promontory. (05 Mar 2000) |
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