Question

More than one choice may apply. Hypertension may result from hypersecretion of a. Thyroxine b. Cortisol c. Aldosterone d. ADH

Accepted Answer

Step 1: Understand the physiological roles of the hormones listed in the question. Thyroxine (a) is a thyroid hormone that regulates metabolism, cortisol (b) is a stress hormone that affects glucose metabolism and blood pressure, aldosterone (c) regulates sodium and water balance, and ADH (d) controls water reabsorption in the kidneys. Step 2: Recall how hypersecretion (excess production) of each hormone can affect blood pressure. For example, excess thyroxine can increase metabolic rate and heart rate, potentially leading to hypertension. Excess cortisol can increase blood pressure by promoting sodium retention and vasoconstriction. Excess aldosterone can lead to hypertension by increasing sodium and water retention, raising blood volume. Excess ADH can also increase blood pressure by promoting water retention. Step 3: Evaluate the mechanisms by which each hormone contributes to hypertension. For instance, aldosterone and ADH directly affect blood volume, while cortisol influences vascular resistance and sodium retention. Thyroxine indirectly affects blood pressure through increased cardiac output. Step 4: Consider whether multiple hormones can simultaneously contribute to hypertension. Since the question allows for more than one choice, identify all hormones whose hypersecretion could reasonably lead to elevated blood pressure based on their physiological effects. Step 5: Review the options provided (a, b, c, d) and match them to the hormones discussed. Select all choices that align with the mechanisms described above for causing hypertension due to hypersecretion.

More than one choice may apply.
Hypertension may result from hypersecretion of
a. Thyroxine
b. Cortisol
c. Aldosterone
d. ADH

비슷한 문제에 대한 검증된 영상 답변:

주요 개념

Hypertension

Hormonal Regulation

Endocrine Disorders