TETRAGASTRIN RECEPTORS
\tˈɛtɹɐɡˌastɹɪn ɹɪsˈɛptəz], \tˈɛtɹɐɡˌastɹɪn ɹɪsˈɛptəz], \t_ˈɛ_t_ɹ_ɐ_ɡ_ˌa_s_t_ɹ_ɪ_n ɹ_ɪ_s_ˈɛ_p_t_ə_z]\
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Cell surface proteins that bind cholecystokinin (CCK) with high affinity and trigger intracellular changes influencing the behavior of cells. Cholecystokinin receptors are activated by gastrin as well as by CCK-4; CCK-8; and CCK-33. Activation of these receptors evokes secretion of amylase by pancreatic acinar cells, acid and pepsin by stomach mucosal cells, and contraction of the pylorus and gall bladder. The role of the widespread CCK receptors in the central nervous system is not well understood.
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Word of the day
basidiomycota
- comprises fungi bearing the spores on basidium: Gasteromycetes (puffballs); Tiliomycetes (comprising orders Ustilaginales (smuts) and Uredinales (rusts)); Hymenomycetes (mushrooms; toadstools; agarics; bracket fungi); in some classification systems considered a division of kingdom comprises fungi bearing spores on a basidium; includes Gasteromycetes (puffballs) Tiliomycetes comprising the orders Ustilaginales (smuts) and Uredinales (rusts) Hymenomycetes (mushrooms, toadstools, agarics bracket fungi).