FOOD20003 Study Guide - Final Guide: Juxtaglomerular Apparatus, Angiotensin, Sodium Chloride
15 Jun 2019
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Water and major minerals (+ chapter 13: iron and zinc) To familiarise students with the role and regulation of water in the body and the various fluid compartments of the body. then to outline the functions of electrolytes. Blood volume correlates with blood pressure controlled by: Adh released from posterior pituitary in response to concentrated blood. Stimulates kidneys to reabsorb more water + decrease excretion of urine. Renin-angiotensin system -> sodium reabsorption water retention juxtaglomerular apparatus of kidney nephrons detects low bp + releases renin renin activates angiotensin(ogen) -> vascular constriction -> raises blood pressure. Angiotensin ii causes blood vessels to constrict + stimulates release of aldosterone. Aldosterone angiotensin ii stimulates release from adrenal glands angiotensin induce aldosterone release from adrenal glands, that cause kidneys to reabsorb sodium + water by osmosis: discuss the main electrolyte levels in extracellular and intracellular fluid. Major minerals: sodium, chloride, potassium, calcium, phosphorous, magnesium, sulphur.
