The active uptake of sodium in the ascending limb or thick loop of Henle is promoted by the action of:
Correct answer: A. Aldosterone
- A. Aldosterone
- B. Thyroxine
- C. ADH
- D. Cortisone
Explanation
As a general principle, Sodium-Ion Concentration in the body is maintained by the hormone Aldosterone. The descending loop of Henle's loop is permeable to water. Water can be reabsorbed from the fluid inside the loop of Henle to the surrounding. The ascending loop of Henle's loop is impermeable to water. Sodium chloride is actively transported from the thick portion of the ascending limb without accompanying water. Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development, and the maintenance of bones. Thyroxine is produced by the thyroid gland, which stimulates the basal metabolic rate. It controls the speed at which oxygen and food products react to release energy for the body to use. Thyroxine plays an important role in growth and development. Thyroxine levels are controlled by negative feedback. The anti-diuretic hormone helps to control blood pressure by acting on the kidneys and the blood vessels. Its most important role is to conserve the fluid volume of your body by reducing the amount of water passed out in the urine.Cortisone is a steroid drug. It helps decrease swelling and inflammation in your body.
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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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