What's the difference between ephyra and medusoid?
Ephyra
Definition:
(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.
Medusoid
Definition:
(a.) Like a medusa; having the fundamental structure of a medusa, but without a locomotive disk; -- said of the sessile gonophores of hydroids.
(n.) A sessile gonophore. See Illust. under Gonosome.
Example Sentences:
(1) We investigated a case of maxillary sinus infection caused by the medusoid mutant of the basidiomycetous fungus Schizophyllum commune.
(2) The strobila, specificially the ephyra, is a mixture of both polypoid and medusoid response types.
(3) Perhaps in the stem lineage of the Bilateria a hydroid-like or medusoid-like ancestor fell over on one side onto a substrate (pleurothetism).
(4) Distinct patterns identified in the order of frequency are adenoid (six), solid (three), and medusoid (two).
(5) Therefore, the ephyra is a mixture of polypoid and medusoid behaviors.
(6) Hyalinized connective tissue and clear cells reminiscent of hair follicle glassy membranes and outer root sheath were present in a solid and the medusoid tumors.
(7) Morphologies of both typical and medusoid forms of S. commune were determined.
(8) Swimming in the ephyra is a medusoid behavior but feeding and spasm are coordinated by the DNN and are polypoid responses.