PSYC 342 Lecture Notes - Lecture 4: Insulin Resistance, Secondary Sex Characteristic, Dehydroepiandrosterone
11 Mar 2013
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Document Summary
The endocrine system: endocrine means the internal secretion of a biologically active substance", gland has something to do with hormone; it produces and secretes a hormone. Can influence cell that released them (autocrine function: can get feedback from body. Hormones can generalized effects, or different effects depending on the specific receptor type. Two chemical classes of hormones: amino acids and peptides, peptides can"t get to the brain unless already there, steroid hormones (four-ringed chemical base, already in the brain. Corticotropin releasing hormone (crh): synthesized in the anterior portion of the pvn (paraventricular nucleus) of the hypothalamus, stimulates the secretion of adrenocorticotropic hormone (acth) from the pituitary, crh releases acth. Synthesized within the preoptic area of the hypothalamus. Growth hormone releasing hormone (ghrh): secreted within the ventromedial nucleus and the arcuate nucleus of the hypothalamus, stimulates growth hormone secretions from the pituitary.
