(n.) A stage in the development of discophorous medusae, when they first begin to swim about after being detached from the strobila. See Strobila.
Example Sentences:
(1) The strobila, specificially the ephyra, is a mixture of both polypoid and medusoid response types.
(2) This similarity suggests that both coordinated responses in the polyp are coordinated by interneural facilitation in the diffuse nerve net (DNN) as in the ephyra.
(3) Developmental abnormalities of the polyps and ephyrae were recorded with the scanning electron microscope and light microscope.
(4) Ephyra cell aggregates showed little morphogenesis, whereas cells from presumptive ephyra tissue gave rise to structures with tentacles and multiple oral openings.
(5) Major findings from this investigation were the absence of rhopalia and statoliths in ephyrae at 150 and 200 Gy, a reduction in pulses per minute in the ephyrae at 100, 150, and 200 Gy, a reduction in ephyrae released at 150, 200, and 400 Gy, and the development of polyp monsters.
(6) Morphology of the ephyrae, and statolith and rhopalia numbers were recorded using the light microscope.
(7) Therefore, the ephyra is a mixture of polypoid and medusoid behaviors.
(8) As the ephyra matures into an adult medusa both polypoid responses are lost, but the DNN remains to modulate pacemaker output and control marginal tentacle contractions.
(9) Mixed reaggregates containing equal proportions of polyp and ephyra cells formed irregular structures with transparent outer layer and opaque inner cell mass, suggesting stage-specific sorting.
(10) Furthermore, feeding and spasm in the ephyra are similar to feeding and the protective response in the polyp.
(11) Cells of scyphistomae, strobilae, and ephyrae were dissociated with trypsin and reaggregated.
(12) As development proceeds from polyp, to ephyra, to medusa, each subsequent stage acquires some new behavior while retaining some aspect from the previous stage.
(13) Swimming in the ephyra is a medusoid behavior but feeding and spasm are coordinated by the DNN and are polypoid responses.
Polyp
Definition:
(n.) One of the feeding or nutritive zooids of a hydroid or coral.
(n.) One of the Anthozoa.
(n.) Same as Anthozoa. See Anthozoa, Madreporaria, Hydroid.
Example Sentences:
(1) The frequency of gastric malignancies in the families of the women with gastric polyps was higher than in the controls and in men, 6.2, 3.1 and 2.4 percent, respectively (p less than 0.05, and p less than 0.025).
(2) In 20 patients (18.2%), visualization revealed uterine abnormalities, mainly newly added endometrial lesions, i.e., hyperplasia, polyps, endometritis, and synechiae.
(3) In the latter groups, specimens were taken from both polyp tissue and adjacent nasal mucosa.
(4) Age, histological type, number or location of the index diminutive polyps, were not associated with proximal lesions.
(5) In this paper, 5 patients with benign tumor (3 tubular adenoma, 1 leiomyoma and 1 fibroma) and 35 pseudotumor (26 cholesterol polyps and 9 inflammatory polyps) of the gallbladder are presented.
(6) The indication to lipomas removal is based on clinical remarks and differential diagnosis with adenomatous polyps.
(7) Genetic relations of skin tags, colon polyps, and colon cancer are a matter of ongoing research.
(8) Of 14 reported cases of Peutz-Jeghers syndrome associated with intestinal carcinoma, in only two was the tumor shown to originate in the polyp.
(9) Examples include the specific pattern of hypodontia seen before the development of iris dysplasia in Rieger syndrome, and the presence of supernumerary teeth and facial osteomas preceding malignant transformation of intestinal polyps in Gardner syndrome.
(10) All patients with distal polyps detected during flexible sigmoidoscopy underwent colonoscopy.
(11) Findings included squamous epithelium with acute and chronic inflammation, foreign body granuloma and aural polyps.
(12) Nine of these 10 patients had juvenile polyposis defined by the presence of at least three juvenile polyps; and eight of the nine had a family history of juvenile polyps.
(13) Eradication of the pedunculated and narrow-based polyps in stomach was almost totally successful by injection into the base.
(14) Included in the study were 193 small polyps, 0.5 cm in diameter, diagnosed on rectoromanoscopy and removed by mechanical way from 182 patients at the Proctologic Unit of the Department of Gastroenterology.
(15) Despite the fact that this approach has several caveats, consistent results obtained in short-term studies would more readily justify the undertaking of a large-scale, long-term controlled study using colon cancer or adenomatous polyp recurrence as an endpoint.
(16) After the polyp was removed, the cells decreased appreciably in number.
(17) Neoplasia was present in 22% of DPs located less than 60 cm from the anus, 73% of proximally located small polyps, and 32% of all DPs.
(18) Non-neoplastic polyps included 32 inflammatory polyps, 32 metaplastic polyps, 27 juvenile polyps and 17 Peutz-Jeghers type polyps.
(19) Polyps were detected ultrasonographically, but one third of them were overlooked by either cholecystography or CT. Nomenclature, pathological classification and management of the lesions are discussed.
(20) Every second polyp in the same region proved to be adenoma.