HD - Endocrine basics 0.0 / 5 ? MedicineMedicineUniversityNone Created by: amiedesancha_Created on: 04-11-18 13:27 Describe paracrine type of action? With e.g. Acts on neighbouring cells (histamine) 1 of 19 Describe Autocrine type of action? With e.g. Acts on itself (IL) 2 of 19 Describe endocrine type of action? With e.g. Release directly into blood stream to distant site (insulin) 3 of 19 Describe neuroendocrine type of action. With e.g. Release from a neurone directly into blood stream (DA inhibition of prolactin) 4 of 19 What hormones are tyrosine derivatives? Dopamine, adrenaline, thyroxine 5 of 19 What is dopamine a precursor of? Noradrenaline 6 of 19 Examples of peptide hormones? GnRH (10aa), GHRH (44aa), prolactin (198aa), insulin (51aa) 7 of 19 Glycoprotein hormones are made up of what two chains? Alpha and Beta 8 of 19 Which chain, out of alpha and beta, is function specific and what is species? Alpha - species, beta - function 9 of 19 Examples of glycoprotein hormones? LH, FSH, TSH, hCG 10 of 19 Which type of release of GnRH leads to inhibition of FSH and LH release? Sustained 11 of 19 What are steroid hormones made from? Cholesterol 12 of 19 Which steroid hormones affect water and electrolyte balance? Mineralcorticoid and aldosterone 13 of 19 Which steroid hormones affect carb and protein metabolism? Glucocorticoids and cortisol 14 of 19 Do hormones act on inotropic receptors? No 15 of 19 What are five types of hormone release? With examples Pulsatile (GnRH), circadian (24hr cycle, cortisol), diurnal (day, night cycle), Infradian (menstrual cycle), seasonal (prolactin) 16 of 19 What types of hormones travel in free form? Catecholamine and Peptide (therefore shorter half life) - largely hydrophilic. Steroid and thyroid hormones are lipothilic 17 of 19 Where are steroid hormones stored? They are not 18 of 19 When are hormones biologically active? When in free form 19 of 19
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