Antidiuretic Hormone

Antidiuretic Hormone - water in their body due to sweat...

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Zac Benjamin KIN 3515 10/10/2011 Antidiuretic Hormone (ADH) ADH (also commonly known as arginine vasopressin) is a nine aminio acid peptide that is secreted from the posterior pituitary. The main function of ADH is to keep water content in the body stable. The most important effect of ADH is to conserve body water by reducing the loss of water in urine. When ADH is secreted, water that would be lost in urine is reabsorbed and conserved. When a person is at a stable condition and not exercising, ADH secretion is low, allowing water to pass through the body and out with urine. As a person starts to exercise they lose
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Unformatted text preview: water in their body due to sweat. Once plasma osmolarity drops below a certain threshold ADH is released. The hormone then causes the body to reabsorb water more efficiently. • An interesting fact about ADH is that the feeling of thirst, which is released by the hypothalamus, is not felt by a person until much after ADH secretion starts. This essentially means that the body is allowing ADH to take care of decreased water level until critical levels are hit and water must be taken into the body. This is also why it is important to start drinking water during exercise, even before you are feeling thirsty....
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