What's the difference between demilune and semicircular?
Demilune
Definition:
(n.) A work constructed beyond the main ditch of a fortress, and in front of the curtain between two bastions, intended to defend the curtain; a ravelin. See Ravelin.
(n.) A crescentic mass of granular protoplasm present in the salivary glands.
Example Sentences:
(1) A similar, less heavy deposition occurred in demilune cells.
(2) Adenyl cyclase activity in mucous acinar cells and serous demilune cells of the rat sublingual gland was localized cytochemically.
(3) The granules of the demilune cells are slightly different in appearance.
(4) Serous cells showed a gradient of immunostaining intensity ranging from strongly positive in demilunes of human sublingual gland to negative in rat submandibular gland and lacrimal glands of rats and mice.
(5) Sympathetic stimulation, on the other hand, had no effect on the tubulo-acini or demilunes but caused a surprisingly extensive degranulation of the striated ducts plus loss of glycogen from their cells.
(6) The mucous cells of both gland types appeared to elaborate sulphated muco-substances and the serous demilunes of the labial glands neutral mucosubstances.
(7) The sublingual gland of Praomys natalensis, an African rodent that is phenotypically and cytogenetically intermediate to mice and rats, is a mixed gland, consisting of mucous acini that are capped by serous demilunes, of intercalated ducts, and of some short striated ducts that quickly become excretory ducts.
(8) The secretion in the serous demilune cells was much faster than in the mucous acinar cells.
(9) After incubation with adenylyl-imidodiphosphate (AMP-PNP) as substrate, deposits of reaction product are found along the cell membranes bordering the secretory surfaces of serous demilune cells.
(10) These findings suggest that the glandular cells of the demilune have the granules containing mucopoly saccharides and a small quantity of protein in addition to the mucous granules, although the terminal portion of the Japanese macaque labial gland is nearly composed of mucous cells.
(11) There was no evidence of specific fluorescence in the acinar and demilune cells nor in the interstitial tissue or blood besells.
(12) The accessory gland has secretory endpieces consisting of mucous acini with small mucous demilunes.
(13) These demilunes are associated with the mucous acini.
(14) In submaxillary glands, staining was localized in serous demilunes and striated ducts.
(15) In contrast to the submandibular gland, the adult parotid and sublingual glands retain the localization of B1-IP reactivity in PRG acinar and intercalated duct cells and in SLG demilunes, and they show the neonatal immunoelectrophoretic pattern.
(16) The secretory endpiece consisted of mucous acini and seromucous demilunes.
(17) 4) The secretory granules containing in the glandular cells of mucous acini stain intensely with PAS, alcian blue (pH1.0, 2.5, 3.5), colloidal iron and PA-methenamine silver, while those of demilunes are negative with alcian blue (pH1.0).
(18) In normal salivary glands, the intercalated duct cells gave positive staining for lysozyme in major glands, and serous acinar cells, demilune cells, and interlobular duct cells were positive in minor glands.
(19) The mechanism whereby parasympathetic stimulation evokes a marked flow of submandibular saliva remains unexplained, but has now been shown to involve a marked increase in the immunoreactivity of Na+, K(+)-ATPase at the base of the gland's demilune cells.
(20) In contrast, demilune cells in the resting submandibular gland showed little if any staining.
Semicircular
Definition:
(a.) Having the form of half of a circle.
Example Sentences:
(1) In addition to the aqueduct other associated inner ear anomalies have been identified in 60% of this population including: enlarged vestibule (14); enlarged vestibule and lateral semicircular canal (7); enlarged vestibule and hypoplastic cochlea (4); and hypoplastic cochlea (4).
(2) It is concluded that the massive destruction of the normal anatomy in the lateral semicircular canal may be the morphological basis of a functional endolymphatic fistula for drainage of the endolymphatic hydrops.
(3) These findings imply that otolithic afferents, unlike those from the semicircular canals, do not interact with neural centres mediating visual localization.
(4) In all patients, the nystagmus elicited during the paroxysm was compatible with excitation of the posterior semicircular canal.
(5) In a series with sixteen normal adult volunteers, 22 to 45 years in age, 100% of the cochleae, vestibules, and lateral and posterior semicircular canals were clearly demonstrated in T2 weighted images.
(6) The chief characteristics of stage 18 (approximately 44 postovulatory days) are rapidly growing basal nuclei; appearance of the extraventricular bulge of the cerebellum (flocculus), of the superior cerebellar peduncle, and of follicles in the epiphysis cerebri; and the presence of vomeronasal organ and ganglion, of the bucconasal membrane, and of isolated semicircular ducts.
(7) Ach, cholinomimetics and cholinergic antagonists were therefore applied to frog isolated whole labyrinths and isolated semicircular canals.
(8) The electrical activity of single trochlear motoneurons (TMns) and axons of second order vestibular neurons presumably terminating on these motoneurons were studied during natural stimulation of semicircular canals and otolith organs in cats anesthetized with Ketamine.
(9) Warming or cooling stimuli to the canal side changed the activity of the semicircular nerve.
(10) In an attempt to destroy selectively the affected peripheral vestibular labyrinth in patients with intractable vertigo as a result of Meniere's disease, a known quantity of streptomycin was introduced within the bony labyrinth following fenestration of the horizontal semicircular canal.
(11) The decrease of the postrotatory reactions is not due to a lesion of the ampullary nerves of the horizontal semicircular canals and it may be explained by the existence of functional connections between the VAC and the horizontal canal.
(12) (4) The lateral semicircular canal was completely obliterated with destruction of the membranous canal.
(13) Separate extracellular injections were made of the anterior branch, the posterior branch, the ampullary nerve of each of the three semicircular canals, and the branch to the saccule.
(14) Intracellular records with glass microelectrodes filled with horseradish peroxidase (HRP) were taken from primary afferents of the horizontal semicircular canal in the lizard, Calotes versicolor.
(15) The other in Montreal, Canada, employed De Vega's semicircular annuloplasty in 17 cases.
(16) Our patient had anomalous configuration of lateral semicircular canal and an abnormally high location of the utricle and saccule.
(17) Although this series is not comprehensive enough, it seems to indicate that interruption of the lateral semicircular duct has a possibility of diminishing labyrinthine hydrops, as in cases of Ménière's disease, without hearing disturbance, provided that complications do not develop.
(18) Semicircular annuloplasty was applied to 16 patients with congenital heart diseases with systemic atrioventricular valve regurgitation (congenital MR 4, ECD 4, Fontan 7, BWG 1).
(19) The specimens revealed: absence of normal bile ducts; presence of thin-walled tubular or saccular cholangiectases with semicircular and annular fibrous crests, without evidence of superinfection; cholangiectases with secondary acute or chronic-cellular cholangitis, with or without cholangitic abscesses; fibrous cholangitis without ductal dilatation; transformation of bile ducts into fibrous cords which were either solid or contained remnants of bile duct epithelium, and complete loss of bile ducts.
(20) When simulating normally functioning semicircular canals, the model produced no nystagmus.