作者: Paul M. Plotsky
DOI: 10.1007/978-1-59259-463-4_8
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摘要: The endocrine system represents a complex communications and control network operating throughout the entire organism for purposes of maintaining homeostasis promoting continuance species. informational units, or intercellular messengers, this encompass diverse range peptide protein molecules (hypophysiotropic substances, growth factors, hormones) that are secreted in an episodic fashion directly into extracellular fluid circulatory system. Actions these messengers may be limited to secretory cell itself (autocrine), neighboring cells (paracrine), distant target possessing appropriate receptors. Both synthetic activities tightly regulated by feedback loops central nervous afferent input is superimposed via multiplicity neurotransmitter pathways.