cnidoblast

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Related to Cnidocyte: Colloblast

cnidoblast

or

nematoblast

a stinging THREAD CELL. see NEMATOCYST.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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New research shows that stinging cells (cnidocytes) in hydra tentacles, which the animals use for self protection and to catch prey, are linked via a simple nervous system to primitive light responsive cells that co-ordinate the animals' feeding behavior.
Hydra are members of a family of radially symmetric animals (Cnidaria), all of which use specialized cnidocytes to catch prey.
A further elaboration of the concept that cnidocytes contain the machinery of chemical synapses is the understanding that cnidocyte discharge is an exocytotic process.
Ultrastructure of the small cnidocyte of the Portuguese man-of-war (Physalia physalis) tentacle.
Exposure to continuous light enhanced the uniformity of anemone behavior and cnidocyte responsiveness.
Exposure to continuous light enhanced uniformity of anemone behavior and cnidocyte responsiveness.
Brooks and Mariscal (1985) suggested that this crab might be accustomed to stinging cnidocytes because anemones (which are also equipped with cnidocytes) are often found on its carapace.
sivickisi are attached to the substrate in the tanks, probably using special cnidocytes (Hartwick, 1991), and we tested different natural substrates to look for possible preferences.
Ultrastructural evidence exists in anthozoans as well, that cnidocytes originate in the column and migrate to the tentacles (Schmidt and Moraw, 1982).
Furthermore, fewer cnidocytes are sacrificed during the firing of a few large spirocytes than by firing many small ones.
Cnidocytes, the sting cells of members of the phylum Cnidaria, are used for a variety of functions, including food capture, locomotion, intra- and interspecific aggression, and defense.