(n.) A little leaf bud, as the plumule between the cotyledons.
(n.) One of the buds of mosses.
(n.) One of the reproductive spores of algae.
(n.) An ovule.
(n.) A bud produced in generation by gemmation.
(n.) One of the imaginary granules or atoms which, according to Darwin's hypothesis of pangenesis, are continually being thrown off from every cell or unit, and circulate freely throughout the system, and when supplied with proper nutriment multiply by self-division and ultimately develop into cells like those from which they were derived. They are supposed to be transmitted from the parent to the offspring, but are often transmitted in a dormant state during many generations and are then developed. See Pangenesis.
Example Sentences:
(1) In the external plexiform layer, a reduced number of mature dendrodendritic synapses and signs of harmed granule gemmules were observed.
(2) F1 knobs contain flattened synaptic vesicles and form symmetrical junctions with F2 knobs, gemmules, spines, and small-medium dendrites in synaptic islands, throughout the neuropil, and on the proximal dendrites and soma of the largest type of neuron.
(3) In electron micrographs of the external plexiform layer, the gemmules which arise from the distal dentrites of granule cells were also observed to be filled with reaction product, and these structures corresponded in size and location to the puncta observed in light microscopic preparations.
(4) Gametogenesis occurs shortly after gemmule hatching in both males and females but slightly later in males.
(5) F2 knobs are irregularly shaped, contain pleiomorphic synaptic vesicles and make symmetrical junctions primarily with gemmules and spines in synaptic islands.
(6) An excess of thyroid hormones therefore causes neuronal proliferation to end precociously leading to a reduction of the total number of gemmules.
(7) Cellular fragments phagocyted by the thesocytes during the gemmule formation undergo a condensation and rearrangement of their constituent elements before forming a definitive platelet.
(8) It has recently been claimed by Ramon-Moliner29, that reciprocal synapses between mitral (and tufted) cell dendrites and granule cell gemmules, which for more than 10 years have been thought to represent a major feature of the structural and functional organization of the olfactory bulb28, are non-existent or, at best, extremely rare.
(9) They are found primarily in "synaptic islands" making contact with gemmules, spines, small dendrites, and other synaptic profiles containing pleiomorphic synaptic vesicles (F2).
(10) The gemmules were observed to form reciprocal dendrodentritic synaptic junctions with mitral cell dentrites which lacked reaction product.
(11) Hypothyroidism may lead to cellular hypoplasia and reduced dendritic ramification, gemmules and interneuronal connections.
(12) They migrate with their growth cones oriented toward the olfactory bulb from the level of the anterior lateral ventricle into the granular layer of the olfactory bulb, where they differentiate into the definitive granule cells: their somata enlarge; the leading processes elongate, branch, sprout many gemmules, and become the peripheral processes; and the trailing processes become the basal dendrites.
(13) It is suggested that a granule-to-mitral dendro-dendritic synapse only forms next to an already existing mitral-to-granule synapse on the same gemmule.
(14) The large amount of geographic overlap of retinal and cortical terminals on gemmules, spines, and small dendrites found in the neuropil outside of synaptic islands logically would maximize axonal sprouting between these two sources.
Hypothetical
Definition:
(a.) Characterized by, or of the nature of, an hypothesis; conditional; assumed without proof, for the purpose of reasoning and deducing proof, or of accounting for some fact or phenomenon.
Example Sentences:
(1) The pathomechanism, how C. pylori facilitates the development of peptic ulcer is since hypothetical.
(2) The model is based on the concept that a cell with hypothetically unlimited replicative potential--i.e.
(3) Blight responded with a hypothetical, telling Ludlam if the ASD asked a foreign agency to get material about Australian citizens it could not access under Australian law, the IGIS would know about it and flag it in its annual report.
(4) The possible roles of the sorbitol pathway and of hypothetical regulatory sites for the glucose molecule ("receptors") are briefly discussed.
(5) By analysis of the three sequences we were able to delineate a hypothetic model for region X domain evolution and discussed the origin of genetic variability within and without strains.
(6) For now, it is a hypothetical danger and England cannot be doing too badly if the worst controversy about Hodgson's squad is who goes as reserve left-back.
(7) On the basis of these data, a hypothetical molecular mechanism of vestibular efferent modulation of the primary afferent pathway is proposed.
(8) A hypothetical scheme is presented that pursues the processes involved in invasion from the biochemical events generated by attachment of the parasite, to the steric rearrangement of red cell membrane proteins, which culminates in invasion.
(9) Samples taken by Monte Carlo means from a hypothetical in vitro population were compared with clonal survival data obtained experimentally.
(10) A hypothetical model is proposed in which prevention of ulcer formation or accelerated healing of ulcers by conventional therapies may be FGF dependent.
(11) In Experiment 1, subjects exposed to a sound representing their heartbeat made greater self-attributions for hypothetical outcomes than did subjects exposed to the same sound identified as an extraneous noise.
(12) The hypothetical pattern is regenerative and shows how epithelial cell patterns where cells divide might arise.
(13) First-year student nurses attributed less pain to the hypothetical patient than third- and fourth-year student nurses and registered nurses.
(14) Problems which have arisen and considerations on the hypothetic future interventions are considered.
(15) The authors surveyed primary care physicians in Missouri to determine the presence and extent of standards of care for 12 hypothetical cases.
(16) A hypothetical view of the relationship between these cell types is presented.
(17) In assessing the autoradiographs, two methods were compared, the circle analysis and the recently described hypothetical grain analysis.
(18) Hypothetically a blockade of the surface of T-lymphocytes by products of the immediate reaction, for example immune complexes, is suggested.
(19) The loss of threshold showed a large inter-individual variability, with a rapid increase above a hypothetic threshold dose.
(20) From the data obtained a hypothetical sequence of phosphorylation and 18O-exchange reactions in myofibril action has been suggested.