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Homeostatic mechanism - Essay Example

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 In the paper “Homeostatic mechanism” the author will focus on homeostatic mechanism, which permits the body to maintain its internal and external mechanism even during extreme weathers.  The presence of veins and arteries in these places make it easy for them to do so…
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Homeostatic mechanism

Download file to see previous pages... The presence of veins and arteries in these places make it easy for them to do so. These receptors may then relay such signal to hypothalamus in the brain which serves as the integrator via the nerve fibers. If the hypothalamus may sense that the temperature is below the set point of is 37 degrees centigrade, it may in turn send message to the effectors acted by the skeletal muscle tissues to shiver as a response to produce heat. In the event that the temperature is back to set point as a result of feedback, the hypothalamus will stop stimulating the skeletal muscle to shiver (Thibodeau & Patton, 2003). Homeostatic mechanism does not apply in the regulation of body temperature alone but it also applies in regulating osmolarity or solute concentration of blood. The regulation process is through the kidneys known to regulate water and electrolytes in the blood. Eating a meal high in salt triggers a hypertonic condition which serves as stimulus to cause the osmoreceptors of the hypothalamus to shrink. This may in turn initiate thirst. As a result, the hypothalamus and neurosecretory cells in the posterior pituitary gland release anti diuretic hormone ADH). When this ADH reaches the cells, it activates a signal for the cells to be permeable to water. The water moves out of the capilliaries and goes back to the blood. ...Download file to see next pagesRead More
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