Homeostasis The human body’s ability to maintain a constant environment is essential to its survival. This capability is referred to as homeostasis. Homeostatic mechanisms keep the body near a set point, based on the sensitivity of central nervous system nuclei, which is an ideal value for that particular person. An example of a homeostatic mechanism is a negative feedback mechanism. Any deviation from the set point is made smaller. This mechanism does not prevent …showed first 75 words of 710 total…

…showed last 75 words of 710 total…in turn maintains blood volume. An adequate blood volume is essential for the maintenance of normal venous return to the heart and therefore for the maintenance of blood pressure. Baroreceptor mechanisms are most important in controlling blood pressure on a short-term basis. They are sensitive to sudden changes in blood pressure, and they respond quickly. The renin-angiotensin-aldosterone system and atrial natriuretic hormone, are more important in the maintenance of blood pressure on a long-term basis.