Health Sciences 3300A/B Study Guide - Midterm Guide: Uterine Contraction, Inferior Phrenic Arteries, Thyroid Nodule
3 Feb 2017
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Most cells of the body are affected by hormones. Two kinds of glands: exocrine: non-hormonal secretions transported through ducts to membrane surface of cells. Ex. tear glands, sweat, mammary glands: endocrine. Secrete speci c chemicals (hormones) into the blood. Ex. thyroid, pituitary = secrete hormones directly into blood. Pure endocrine organs: parathyroid, pineal gland, thyroid, adrenal (only purpose is to produce hormones) Endocrine glands are in the cranial, neck, thorax, abdomen and pelvis: liver, gonads, and pancreas have both functions. Friday, february 3, 2017: molecular size varies greatly. From amino-acids to proteins: exert signalling effects on target cells upon binding receptors on surface of cells. Include; epinephrine, norepinephrine, acth, adh, tsh, lh/fsh, calcitonin. Steroid hormones (ending in ol or one: only gonadal and adrenocortical hormones are steroids, lipid soluble, diffuse into target cells, bind intracellular receptor to transmit signal. Include: aldosterone, progesterone, testosterone, cortisol, growth hormone. Hormonal action: alters cell activity, response depends on target cell: examples:
