What's the difference between tympana and tympanal?
Tympana
Definition:
(pl. ) of Tympanum
Example Sentences:
(1) The final model which includes both tympana and spiracles is able to simulate both the hearing directionality and, in part, the frequency selectivity of the system.
(2) The ear is in a deep groove and consists of two tympana facing each other and backed by large air sacs.
(3) There are no major deposits of resilin in the tympana.
(4) Other insects with auditory tympana possess paired, laterally placed ears; the mantis has only a single ear that is located in the ventral midline between the metathoracic legs.
(5) The innermost portion of the tympana consists of this same type of cuticle without the electron-dense material.
(6) Associated with the appearance of the electron-dense material in the tympana of the pharate adult is a change in the toluidine blue staining properties from blue to deep purple.
(7) In pharate adults and adults the external layer of the tympana consists of a layer of electron-dense material overlying a layer where the electron-dense material is interspersed with cuticle in which the bundles of microfibrils are coarser and more loosely arranged than elsewhere in the leg.
(8) The reaction of the tympana in acid and base is consistent with their being composed of chitin.
(9) It is only in the pharate adult that changes associated with development of the tympana first appear.
(10) In a more complex model in which it is recognized that the auditory system probably responds to pressure changes in the tracheal sacs underlying the tympana rather than simply to tympanic motion, it is found that the phase shift produced by the combined effects of the central septum and the adjoining cavities leading to the spiracles is also important to hearing directionality.
(11) There were also unusual circular mounds of epidermal cells in all asebia tympana, apparently due to localized hyperproliferation.
Tympanal
Definition:
(n.) Tympanic.
Example Sentences:
(1) Subsequently, the inflammatory reaction diminishes, as can be seen on smears from tympanic effusions.
(2) Deep body temperature was recorded from the tympanic membrane, oral cavity, esophagus, and rectum.
(3) Microotoscopy showed a blue pulsating mass behind the tympanic membrane.
(4) Both tympanic and nontympanic pathways of sound reception are utilized by anuran amphibians.
(5) A clinico-pathological study of 10 cases (including histopathology) indicates that occult cholesteatoma is neither a congenital cholesteatoma nor an epidermoid cyst, originating in the attic through a melaplastic process of middle ear mucosa behind an intact tympanic membrane.
(6) An artist's rendition of the entire normal gerbil tympanic membrane is presented.
(7) The core temperature is taken from the rectum, the nasopharynx or tympanic membrane, and the peripheral temperature from the great toe.
(8) (2) Tympanometrically measured middle ear pressure (MEP) was almost equivalent to the actual MEP recorded by a manometer when the tympanic membrane was normal.
(9) These complications are of much higher frequency than after tympanoplasty with autograft, and indications for tympano-ossicular homografts are now limited to total tympanic destruction with absence of handle of malleus.
(10) Definitive degeneration and atrophic type changes were seen in all the parotid fragments removed six months after selective neurectomy of the tympanic plexus.
(11) During juvenile and adult life stages, the process becomes somewhat removed from the fenestra for obvious reasons, but at a gape of about 40 to 50 degrees it inevitably must touch the "inferior tympanic membrane" and possibly also the tympanic ring.
(12) On the other hand, the ciliary activity of the middle ear lining displays a varying pattern of reaction according to the locations within the tympanic cavity.
(13) Tympanometric findings could more often correctly suggest reduced tympanic membrane mobility than did otomicroscopy, but both methods gave an equally good indication of middle ear effusion.
(14) Ventilatory conditions, or the existence of soft tissue density, were evaluated by HRCT at such locations as the supratubal recess, mesotympanum, anterior and posterior parts of the tympanic isthmus, epitympanum, and mastoid antrum.
(15) Also the tympanic nerve and its course on the promontorium have been estimated.
(16) In this second report a sizable proportion of the men reported a history of otitis or otorrhea but had normal tympanic membranes.
(17) Above 5 kHz discrete resonances are observed, and the response varies strongly with position on the tympanic membrane.
(18) One problem remains: permanent aeration of the new tympanic cavity.
(19) Significant improvements in measurements of ear function also allow us to be more precise in the diagnoses of otosclerosis, perforation of the tympanic membrane, ossicular discontinuity, facial nerve dysfunction, and brain stem disorders.
(20) 1) When pressure was applied to the tympanic cavity, the curvature of the TM became small under negative pressure and large under positive pressure, with the displacement being greater under positive pressure.