*NURSING > TEST BANKS > McCann PSYCHOPATHOLOGY BIOLOGIC BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION (All)
McCann PSYCHOPATHOLOGY BIOLOGIC BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION
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McCann PSYCHOPATHOLOGY BIOLOGIC BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION McCann PSYCHOPATHOLOGY BIOLOGIC BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION McCann PSYCHOPATHOLOGY BIOLOGI... C BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION Chemical signaling can be classified into three categories: (1) local-chemical mediator, (2) hormone, and (3) neurotransmitter. Hormones are released by one set of cells and travel through tissues or the bloodstream to another set of cells where they produce a response by those cells. In paracrine signaling, cells secrete local chemical mediators that are quickly absorbed, destroyed, or immobilized. Paracrine signaling requires close membrane-to-membrane contact. Paracrine signaling usually involves different cell types; however, cells also may produce signals that they, themselves, respond to, which is called autocrine signaling. Neurotransmitters are released by neurons and cross the synaptic cleft to communicate with the cells they innervate. [Show More]
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