A cell type found in ctenophores. It is a cell type found in ctenophores. They are widespread in the tentacles of these animals and are used to capture prey.
The colloblast appears to be a disposable capture cell and a new scheme of its organization is proposed. LITERATURE CITED AFZELIUS, B. A., 1969. Ultrastructure of cilia and flagella. Pages 1219-1242 in A. Lima-de-Faria, Ed., Handbook of molecular cytology. Although the helical thread is loosely coiled for the first two turns, it later tightens before heading towards the center of the colloblast head. The diameter (0.25-1.25 u), length and number of turns of the helical thread vary with the origin of the colloblast. ColorBlast 12. High-performance ColorBlast 12 LED fixtures generate rich, saturated colors and color-changing effects for a range of wall-washing and floodlighting applications. 1 Unified power and data cable — Each ColorBlast 12 fixture comes with a 60 ft (18.3 m) unified power and data cable to minimize wiring. In a resting colloblast, the membrane folds follow the helical thread along the generatrix line facing the longitudinal axis of the cell (Fig. 17a). But, in an extended colloblast, it is the membrane folds that form a loose helix around the straightened thread (Fig. Although the helical thread is loosely coiled for the first two turns, it later tightens before heading towards the center of the colloblast head. The diameter (0.25-1.25 u), length and number of turns of the helical thread vary with the origin of the colloblast. : a gelatinous or mucinous substance found normally in the thyroid and also in diseased tissue. 2. a: a substance that consists of particles dispersed throughout another substance which are too small for resolution with an ordinary light microscope but are incapable of passing through a semipermeable membrane. — col·loi·dal \kə-ˈlȯi-dəl, kae-\ kä. — adjective·col·loi·dal ly. Adverb see colloid defined for. kids colloblast. (invertebrate zoology). An adhesive cell on the tentacles of ctenophores. 1  Facebook. 2  Twitter.  Colloblasts are a cell type found in ctenophores. They are widespread in the tentacles of these animals and are used to capture prey. Colloblasts consist of a coiled spiral filament that is embedded in the epidermis and an axial filament with a granular dome. The apical surface of these cells consist of eosinophilic granules that are thought to be the source of adhesion. On contact, these granules rupture, and release an adhesive substance onto the prey. The spiral filament absorbs the impact of the rupture, preventing the ensnared prey from escaping. 1 ColorBlast 6 is intended for use with PDS-150e and PDS-60 24V power / data supplies. 2  Industry-leading controls — ColorBlast 12 fixtures work seamlessly with the complete line of Philips Color Kinetics controllers, including iPlayer 3 Light System Manager, and ColorDial Pro, as well as third-party controllers. 1 Unified power and data cable — Each ColorBlast 12 fixture comes with a 60 ft (18.3 m) unified power and data cable to minimize wiring. Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are both beautiful—the jellyfish with their pulsating bells and long, trailing tentacles, and the comb jellies with their paddling combs generating rainbow-like colors. Most jellies primarily eat plankton, tiny organisms that drift along in the water, although larger ones may also eat crustaceans, fish and even other jellyfish along in the water, although larger ones may also eat crustaceans, fish and even other jellyfish and comb jellies. a: a substance consisting of particles that are dispersed throughout another substance and are too small for resolution with an ordinary light microscope but are incapable of passing through a semipermeable membrane b: a mixture (as smoke) consisting of a colloid together with the medium in which it is dispersed. a: a substance that consists of particles dispersed throughout another substance which are too small for resolution with an ordinary light microscope but are incapable of passing through a semipermeable membrane. — col·loi·dal \kə-ˈlȯi-dəl, kae-\ kä. — adjective·col·loi·dal ly. Adverb see colloid defined for. kids Like the cnidocytes of cnidarians, colloblasts are discharged from the tentacles and are used for prey capture. However, unlike cnidocytes, which are venomous cells, colloblasts stick to, rather than sting their prey. The apical surface of these cells consist of eosinophilic granules that are thought to be the source of adhesion. On contact, these granules rupture, and release an adhesive substance onto the prey. The spiral filament absorbs the impact of the rupture, preventing the ensnared prey from escaping.
http://www.jstor.org/stable/1540788 http://www.colorkinetics.com/ls/rgb/colorblast12/ http://www.jstor.org/stable/1540788 http://www.merriam-webster.com/dictionary/colloid http://encyclopedia2.thefreedictionary.com/Colloblast https://en.wikipedia.org/wiki/Colloblast http://www.colorkinetics.com/ls/rgb/colorblast12/ http://ocean.si.edu/jellyfish-and-comb-jellies http://www.merriam-webster.com/dictionary/colloid https://en.wikipedia.org/wiki/Colloblast
what is a colloblast