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9 Cards in this Set
- Front
- Back
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Osmotic thirst |
Losing fluid caused by eating salty foods |
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Hypovolemic thirst |
Caused by losing fluid by sweating or bleeding |
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Vasopressin |
Hormone released by posterior pituitary - it raises blood pressure by constricting blood vessels which compensates for decreased blood volume. Also known as anti diuretic hormone. |
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Osmotic pressure |
The tendency for water to flow across a semipermeable membrane from an area of low solute concentration to an area of high concentration. |
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OVLT & subfornical organ (SFO) |
Receptors around the 3rd ventricle that detect osmotic pressure and sodium content of the blood. |
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Aldosterone |
A hormone produced in the adrenal gland that causes the kidneys, salivary glands & sweat glands to retain salt. |
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Angiotensin II |
Restricts the blood vessels, compensating for the drop in blood pressure. |
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Lateral preoptic area |
In hypothalamus, controls drinking. |
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Paraventricular nucleus & supraoptic nucleus |
In hypothalamus; control the rate at which the posterior pituitary releases vasopressin. |
