Maintaining homeostasis requires that the body continuously monitor its internal conditions. From body temperature to blood pressure to levels of certain nutrients, each physiological condition has a particular set point. Therefore, negative feedback maintains body parameters within their normal range. Learn how organisms maintain homeostasis, or a stable internal from Homeostasis: Figure 1 by OpenStax College, Anatomy & Physiology, CC BY Human Physiology Homeostasis (PHPY ) Begins with a review of the physiology of reproductive systems and the establishment of the uterine.


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Role of Homeostasis in Human Physiology: A Review

The angiotensin II-stimulated aldosterone released from the zona glomerulosa of the adrenal glands has an effect on particularly human physiology homeostasis epithelial cells of the distal convoluted tubules and collecting ducts of the kidneys.

Here it causes the reabsorption of sodium ions from the renal tubular fluidin exchange for potassium ions which are human physiology homeostasis from the blood plasma into the tubular fluid to exit the body via the urine.


The hyponatremia can only be corrected by the consumption of salt in the diet. However, it is not certain whether a "salt hunger" can be initiated by hyponatremia, or by what mechanism this might come about.

When the plasma sodium ion concentration is higher than normal hypernatremiathe release of renin from the juxtaglomerular apparatus is halted, ceasing the production of angiotensin II, human physiology homeostasis its consequent aldosterone-release into the blood.

  • Homeostasis: positive/ negative feedback mechanisms : Anatomy & Physiology
  • Homeostatic control
  • Human Physiology/Homeostasis

The kidneys respond by excreting sodium ions into the urine, thereby normalizing the human physiology homeostasis sodium ion concentration. The low angiotensin II levels in the blood lower the arterial blood pressure as an inevitable concomitant response.

The reabsorption of sodium ions from the tubular fluid as a result of high aldosterone levels in the blood does not, of itself, cause renal tubular water to be returned to the blood from the distal convoluted tubules or collecting ducts.

Human Physiology/Homeostasis - Wikibooks, open books for an open world

This is human physiology homeostasis sodium is reabsorbed in exchange for potassium and therefore causes only a modest change in the osmotic gradient between the blood and the tubular fluid.

Furthermore, the epithelium of the distal convoluted tubules and collecting ducts is impermeable to water in the absence of antidiuretic hormone ADH in the blood.


ADH is part of the control of fluid balance. Its levels in the blood vary with the osmolality of the plasma, which is measured in the hypothalamus of the brain.

Role of Homeostasis in Human Physiology: A Review

Aldosterone's action on the kidney tubules prevents sodium loss to the extracellular fluid ECF. However, low aldosterone levels cause a loss of sodium ions from the ECF, which could potentially cause a change in extracellular osmolality and therefore of ADH levels in the blood.

Aldosterone acts human physiology homeostasis on the distal convoluted tubules and collecting ducts of the kidneys, stimulating the excretion of human physiology homeostasis ions into the urine. These systems maintain the stability of the body by releasing the stimulus when the hormone levels increases or decreases.


The stimulus is generated; the cells act accordingly to maintain the proper functioning of the human physiology homeostasis. Thus feedback mechanisms work and maintain the cells to human physiology homeostasis the set point.

The endocrine system has a regulatory effect on other organ systems in the human body. In the muscular system, hormones adjust muscle metabolism, energy production, and growth.

In the nervous system, hormones affect neural metabolism, regulate fluid and ion concentration and help with reproductive hormones that influence brain development. Homeostasis is an important characteristic of living things. Maintaining a stable internal environment which requires adjustments as conditions change inside and outside the cell.

Homeostasis - Wikipedia

The maintenance of systems within a cell is called homeostatic regulation. The continuous adjustments are made to meet the Set Point. Homeostasis is regulated by 3 different mechanisms and they are: