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Impairment of adrenal cortex causes decr...

Impairment of adrenal cortex causes decrease concentration of _______in blood.

A

sodium

B

calcium

C

ACTH

D

water

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the impairment of the adrenal cortex and its effect on blood concentration, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Function of the Adrenal Cortex**: - The adrenal cortex is responsible for producing several hormones, including aldosterone, cortisol, and androgens. Aldosterone plays a crucial role in regulating sodium and potassium levels in the blood. 2. **Identify the Role of Aldosterone**: - Aldosterone specifically promotes the reabsorption of sodium ions in the kidneys. This means that when aldosterone is present, sodium is retained in the body, leading to an increase in sodium concentration in the blood. 3. **Consider the Impact of Impairment**: - If the adrenal cortex is impaired, the production of aldosterone decreases. Consequently, there will be less sodium reabsorption in the kidneys. 4. **Determine the Resulting Change in Blood Concentration**: - With decreased aldosterone levels, sodium ions will not be reabsorbed effectively, leading to a decrease in sodium concentration in the blood. 5. **Evaluate Other Options**: - Calcium levels are primarily regulated by the parathyroid hormone and vitamin D, not by the adrenal cortex. - ACTH (Adrenocorticotropic hormone) is produced by the pituitary gland and stimulates the adrenal cortex but is not directly affected by its impairment. - Water reabsorption is mainly regulated by antidiuretic hormone (ADH) from the pituitary gland, not directly by the adrenal cortex. 6. **Conclusion**: - Therefore, the correct answer to the question is that impairment of the adrenal cortex causes a decrease in the concentration of **sodium** in the blood. ### Final Answer: The impairment of the adrenal cortex causes a decrease in the concentration of **sodium** in the blood. ---
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