| post-tympanic | <anatomy> Situated behind the tympanum, or in the skull, behind the auditory meatus. Origin: Pref. Post- + tympanic. Source: Websters Dictionary (01 Mar 1998) |
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| cutaneous layer of tympanic membrane | The thin layer of skin on the external surface of the tympanic membrane. Synonym: cutaneous layer of tympanic membrane. (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) |
| secondary tympanic membrane | The membrane closing the fenestra cochleae or rotunda. Synonym: membrana tympani secundaria, Scarpa's membrane. (05 Mar 2000) |
| nerve of tympanic membrane | Sensory branch of the auriculotemporal nerve supplying the external surface of the tympanic membrane. Synonym: ramus membranae tympani nervi auriculotemporalis, nerve of tympanic membrane. (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) |
| superior recess of tympanic membrane | A space in the mucous membrane on the inner surface of the tympanic membrane between the flaccid part of the membrane and the neck of the malleus. Synonym: recessus membranae tympani superior, Prussak's pouch, Prussak's space. (05 Mar 2000) |
| superior tympanic artery | <anatomy, artery> Origin, middle meningeal; distribution, middle ear; anastomoses, other tympanic arteries. Synonym: arteria tympanica superior. (05 Mar 2000) |
| inferior tympanic artery | <anatomy, artery> Origin, ascending pharyngeal; distribution, middle ear; anastomoses, tympanic branches of other arteries. Synonym: arteria tympanica inferior. (05 Mar 2000) |
| inferior wall of tympanic cavity | The floor of the tympanic cavity; a thin plate of bone separating the tympanic cavity from the jugular fossa. Synonym: paries jugularis cavi tympani, fundus tympani, inferior wall of tympanic cavity, jugular wall of middle ear. (05 Mar 2000) |
| tense part of the tympanic membrane | The greater portion of the tympanic membrane which is tense and firm, contrasting with the small triangular flaccid part of tympanic membrane. Synonym: pars tensa membranae tympani, membrana tensa, membrana vibrans. (05 Mar 2000) |
| tensor muscle of tympanic membrane | <anatomy, muscle> Origin, the cartilaginous part of the auditory (eustachian) tube and the walls of its hemi-canal just above the bony portion of the auditory tube; insertion, handle of malleus; action, draws the handle of the malleus medialward tensing the tympanic membrane to protect it from excessive vibration by loud sounds. Nerve supply, branches of trigeminal through the otic ganglion. Synonym: musculus tensor tympani, tensor muscle of tympanic membrane, Toynbee's muscle. (05 Mar 2000) |
| tubal branch of the tympanic plexus | Sensory branch of tympanic plexus (of glossopharyngeal nerve) to auditory tube. Synonym: ramus tubarius plexus tympanici. (05 Mar 2000) |
| tympanic | 1. Like a tympanum or drum; acting like a drumhead; as, a tympanic membrane. 2. <anatomy> Of or pertaining to the tympanum. <anatomy> Tympanic bone See the Note under Ear. See: Tympanum. <anatomy> The tympanic bone. Source: Websters Dictionary (01 Mar 1998) |
| tympanic air cells | Numerous groovelike depressions in the walls of the tympanic cavity, communicating with the tubal air cells. Synonym: cellulae tympanicae, tympanic cells. (05 Mar 2000) |