Anti-diuretic hormone is secreted at the time of:
Correct answer: D. Dehydration
- A. Constipation
- B. Micturation
- C. Hypertension
- D. Dehydration
Explanation
The anti-diuretic hormone (ADH), also known as vasopressin, is secreted by the posterior pituitary gland. It plays a crucial role in maintaining water balance within the body by promoting water reabsorption in the kidneys. During dehydration, the body needs to conserve water, and therefore, ADH is secreted to reduce water loss through urine. In contrast, conditions like constipation, micturition, and hypertension do not directly stimulate the secretion of ADH. Constipation involves the digestive system, micturition refers to the act of urination, and hypertension is related to blood pressure regulation.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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