What's the difference between tympana and tympany?
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.
Tympany
Definition:
(n.) A flatulent distention of the belly; tympanites.
(1) The lengths and heights of the scalae tympani in ten pairs of serially sectioned temporal bones were measured by an adaptation of the serial section method of cochlear reconstruction.
(2) With the aid of analysis of afferent impulse activity in the cat chorda tympani, it was shown that the effect of application of organic acids solutions of the same pH to the tongue could be represented as follows: propionic acid greater than lactic acid greater than pyruvic acid.
(3) The threshold functions differ from those observed in patients with scala tympani electrodes, primarily at low sinusoidal frequencies and long pulse widths.
(4) At the same time the data are obtained on variations in topography of the chorda tympani at various form of the intratemporal fossa.
(5) One group of rats was tested both before and after bilateral removal of the chorda tympani.
(6) Each mastoid and epitympanum was extensively involved with chronically inflamed tissue which surrounded the ossicles and chorda tympani nerve.
(7) Both chorda tympani of these and 4 control mice were later excised.
(8) The electrodes can be implanted in bundles through the round window or into the modiolus; they can, however, also be introduced individually through several drill holes in the promontory for placement in the scala tympani and vestibuli.
(9) In this respect, round-window and scala tympani stimulation sites are equally efficacious.
(10) Click evoked electromyographic (EMG) recordings were made from the contralateral tensor tympani muscle of anaesthetised mice.
(11) It was hypothesized that abnormal signals mediated by the chorda tympani nerve (CT) could be causally involved in NaCl avoidance by F344 rats.
(12) Ciliated and secretory cells were concentrated around the Eustachian tube orifice; additionally, ciliated cells were seen in two distinct bands extending posteriorly below the cochlea in the hypotympanum and above the cochlea toward the tensor tympani muscle.
(13) It is the purpose of this study to attempt a correlation of function, by electromyographic means, of the tensor tympani and tensor veli palatini muscles in humans.
(14) Taste sensitivity of preweanling mice was studied by examining responses of the chorda tympani (CT) and glossopharyngeal (GL) nerves to various taste stimuli, and was compared to that of adult mice.
(15) Beta-adrenergic blocking drugs reduced or abolished the hyperaemia of isoproterenol and reduced that of chorda tympani nerve stimulation.
(16) Only the scala tympani compartment of the basal cochlear turn remained patent.
(17) The results suggest that under physiological conditions the CSF also flows through the cochleae aqueduct and the protein concentration in the Scala tympani decreases especially in the basal winding.
(18) To determine whether changes in salt and sugar responses occur during development in the hamster, multifiber responses were recorded from the chorda tympani nerve while stimulating the anterior tongue of preweanling, early postweanling, and adult hamsters.
(19) Because there are a lot of contradictory opinions in the literature we investigated the intra- and extraosseous pathway of the Chorda tympani by dissecting the heads of 6 cadavers.
(20) The electrical activity in the chorda tympani proper nerve of two of the monkeys was recorded during the application to the tongues of 0.02% monellin and thaumatin, 0.5% miraculin and stimuli representing the four taste qualities.