(n.) Any protoplasmic filament or irregular process projecting from any unicellular organism, or from any animal or plant call.
(n.) A rhizopod.
Example Sentences:
(1) Under conditions of chemotaxis with activated serum beneath the filter, the neutrophil population oriented at the filter surface with nuclei located away from the stimulus, centrioles and associated radial array of microtubules beneath the nuclei, and microfilament-rich pseudopods penetrating the filter pores.
(2) In the latter case, the movement of lectin-receptor complexes occurs from membrane overlying peripheral microtubules into filament-rich pseudopods that exclude microtubules.
(3) The morphology of human leukocytes, the biochemistry of actin polymerization, and the theory of continuum mechanics are used to model the pseudopod protrusion process of leukocytes.
(4) In an activated serum gradient, colchicines, but not lumicolchicine, decreased the orientation of nuclei and centrioles, and caused a decrease in centriole-associated microtubules in concentrations as low as 10(-8) to 10(-7) M. These colchicines effects were associated with the rounding of cells and impairment of pseudopod formation.
(5) In the electron microscope administration of TSH was seen to induce well-known signs of endocytosis, such as formation of pseudopods and colloid droplets.
(6) In addition, some lymphocytes with pseudopods were detected both in alveolar lumen and in the interstitium.
(7) Sections at this region of high membrane turnover reveal a band of densely packed smooth vesicles with round and tubular profiles, some of which are associated with the pseudopod plasma membrane.
(8) The F-actin assembled by 60 sec is localized in these new pseudopods.
(9) The presence of the multivesicular body in the pseudopod or in the vicinity of the pseudopod of the lymphocyte may contribute to the migration.
(10) The ultrastructural studies suggest that the major Tg-induced changes (pseudopod formation and granule centralization) are consistent with a primary role for Tg to mobilize calcium; DPPE had very little effect on these ultrastructural changes.
(11) The secretion of thyroid hormones under the influence of pituitary thyrotrophin (TSH) from stores in the luminal colloid is initiated by elongation of microvilli and formation of pseudopods.
(12) The second stage of actin assembly, which peaks at 60 sec following an upshift in cAMP concentration, is temporally correlated with the growth of new pseudopods.
(13) (8) The development of platelet constriction, platelet pseudopods and the intracellular microfilaments are delayed in colchicinized clots, corresponding to the retardation of retraction.
(14) Bound CGP-ABY was cleared first from the tips of the projections and subsequently from the entire pseudopod surface.
(15) The actin-binding protein ABP-120 has been proposed to play a role in cross-linking F-actin filaments during pseudopod formation in motile Dictyostelium amebas.
(16) The formation of pseudopods is impaired and no microtubules are found in platelets in the presence of colchicine.
(17) When motility was compared between sublines, membrane ruffling and cellular translation were relatively unaffected by substrate, whereas pseudopodal extension was altered significantly by different substrates.
(18) After correcting for effects of pseudopods and platelet size on platelet diffusion and sedimentation, it still appeared that the small number of long pseudopods formed on human platelets could largely explain the unusually large alpha B values.
(19) No such changes were observed in non-sensitized M. In contrast, when immunosuppressants or immunomodulators were used, increases of pseudopod movement and pinocytosis, and excitation of cytoplasmic movement, were observed in both sensitized and non-sensitized M if compounds were cytotoxic.
(20) From the enlarged apical plasma membrane, pseudopods are formed.
Tentacle
Definition:
(n.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion.
Example Sentences:
(1) Using serial-sectioning techniques for conventional transmission and high-voltage electron microscopy, we characterized the ultrastructural features and synaptic contacts of the sensory cell in tentacles of Hydra.
(2) Microtubules at the tip of a resting (non-feeding) tentacle are arranged helically in two concentric tube-shaped arrays.
(3) The sensory cells of the mantle tentacles are found to be ciliated, primary receptors with subepithelial nuclei.
(4) In studies involving nearly intact animal preparations, neurons were identified which control specific movements of the dorsal cerata, the oral veil tentacles, and the margins of the foot.
(5) Freed of the need to wave their tentacles around to hunt for food, the coral can devote more energy to secreting the mineral calcium carbonate, from which they form a stony exoskeleton.
(6) She said the tentacles, or oral arms, were about a metre long and covered in microscopic mouths.
(7) Each tentacle is reinforced by eight pairs of fibrils arranged concentrically just within its wall, and contains a single missile-like body (MLB).
(8) We decided to test Chrysaora hysoscella dermotoxicity on healthy volunteers by cutting a Chrysaora hysoscella tentacle and placing it on a gauze soaked in a solution of 3% NaCl and applying then to the volar side of the right wrist for one minute.
(9) The prime minister said waves of immigration had helped Australia flourish, “yet the tentacles of the death cult have extended even here as we discovered to our cost during the Martin Place siege last December”.
(10) The tentacles of the terrestrial snail Achatina fulica contain an epithelium at their tips which is specialized for olfaction.
(11) Contact with the tentacles of the jellyfish had produced characteristic whiplash-like weals on the skin.
(12) The tentacles in hydra have characteristics of both spacing patterns and number-regulating patterns in that their number under some circumstances changes with the size of the animal and under others does not.
(13) The chemoreceptors of the optic tentacle bulb, small and large neurons of tentacle ganglion and bipolar cells of olfactory nerve send their processes to the CNS of the mollusc.
(14) Through dexterous operation of the Shinkai6500's mechanical arms by pilot Sasaki-san, we quickly began collecting samples of rocks, the hot fluids from the vents, and the creatures thriving around them: speckled anemones with almost-translucent tentacles, and the orange-tinted shrimp scurrying among them.
(15) The role of micro-filaments and halothane-resistant dynein-like inter-row bridges in tentacle movement is discussed.
(16) Here lies our greatest risk, one insufficiently appreciated by those who so blithely accept the tentacles of corporation, press and state insinuating their way into the private sphere.
(17) Similarly, following decapitation as a new head regenerates, CP8 label appears covering a domed area at the apical end of the regenerate before tentacles evaginate delineating the head.
(18) Particularly, the proteinic fractions 7 and 8 are more concentrated in the extract of juveniles snails tentacles than in the extract of adults snails.
(19) Ninety-seven per cent of all nematocytes, including all 4 types, are mounted in the battery cells of the tentacles.
(20) The tentacles become attached to the cilia of the host, and serve for feeding upon the plasmatic contents of the cilia as well as for maintaining contact with the host.