ANAT1053 Lecture Notes - Diabetes Insipidus, Blood, Vasopressin
12 Jun 2022
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Document Summary
Fluid, electrolyte, and acid-base balance: blood composition depends on three factors, kidneys have four roles in maintaining blood composition. Fluid, electrolyte, and acid-base balance: excretion of nitrogen-containing wastes (previously discussed, maintaining water balance of the blood, maintaining electrolyte balance of the blood, ensuring proper blood ph. The link between water and salt: solutes in the body include electrolytes such as sodium, potassium, and calcium ions, changes in electrolyte balance causes water to move from one compartment to another. Alters blood volume and blood pressure can impair the activity of cells: thirst mechanism, osmoreceptors react to small changes in blood composition by becoming more active. Regulation of water intake and output: sources of water output. Lungs (insensible since we cannot sense the water leaving) Urine: hormones are primarily responsible for reabsorption of water and electrolytes by the kidneys. Antidiuretic hormone (adh) prevents excessive water loss in the urine and increases water reabsorption.
