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Physiology for health - Essay Example

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Physiology of Health Physiology of Health (Date submitted) Physiology of Health Although the body is exposed to various internal and external factors that disrupt its health physiology, the body still can survive because of its mechanisms that may counter the effects of such changes…
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Physiology for health
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4. Describe the mechanisms involved in regulation of energy metabolites? 5. Explain the role of the hormones involved in controlling glucose level? 6. Describe the role of structures in controlling carbon dioxide and urea? Homeostatic Mechanism Homeostatic mechanism happens in an attempt to balance the internal environment of the body despite the changes in temperature of the internal and external environment. To achieve such condition, the temperature and chemical compositions of the person’s fluid environment has to remain constant (Thibodeau & Patton, 2004).

Thus, in events where there are disturbances of the homeostatic condition of the body, specific regulatory mechanisms responds to adjust the different body systems for the person to get back to its homeostatic state. The body adapts the self regulatory mechanism as a way to homeostasis. For instance, if a person’s temperature greatly fluctuates from the set point which is 37 degrees centigrade, the regulatory system that controls body temperature use negative feedback to correct the temperature to bring it back to the set point.

The same holds true in chemical changes where glucose and gases such as carbon dioxide and oxygen has to be maintained if the person is to survive. However, in this case, there is a gap for hormonal homeostasis to be corrected because chemical substances of the body take time to diffuse and circulate into the blood stream. Osmoregulation and Thermoregulation Process Homeostatic mechanism works to regulate the osmoregulation process through the kidneys that regulates the water and electrolytes that leaves the blood so that it equals the amount that enters.

To process blood plasma and to form urine, the mechanism of filtration, tubular re absorption and tubular secretion has to take place. These mechanisms start when the water and solutes free of protein moves from plasma to the tubules of the Bowman’s capsule. As they pass through the tubules, water and important solutes are reabsorbed while molecules that move out of the blood are excreted. This process not only prevents water loss or retention but also maintains sodium and potassium content as well as the desirable ph level of the blood.

Thermoregulation is also regulated by homeostatic mechanism with the negative feedback of the muscles. Stimulus from the outside environment is perceived by the affectors and is relayed to the hypothalamus where it is compared with the “built in” body set point. The result of the interpretation of the hypothalamus will be sent back to the effectors for the body to act appropriately. For example, when a person is exposed to cold weather, the skin and blood vessels picks up the signal and is sent to the hypothalamus which is interpreted as something that threatens the temperature.

As a result, it sends nerve signal to the muscles to shiver to produce heat. Once the body temperature is regulated, the hypothalamus stops its stimulation of the effectors. Functions of Cardiovascular and Respiratory systems in regulating body Mechanism The function of the cardiovascular and respiratory systems regulates body mechanism by transporting hormones and nutrients , cleansing waste body products such as carbon dioxide and providing the body with fresh supply of oxygen as the blood circulates within the structures of the heart and lungs.

As the blood is propelled to enter the right side of the

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