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Reena was experiencing headache and dizz...

Reena was experiencing headache and dizziness for the last few
days . When visited a clinic, the doctor informed that her blood pressure is high. Which of the following hormones will be secreted
in body to reduce the blood pressure ?
I. Aldosterone
II. Cortisol
III. Atrial Natriuretic factor
IV. Erythropoietin

A

I only

B

I and II

C

III only

D

I and III

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which hormone will be secreted in the body to reduce blood pressure, we will analyze each of the given options step by step. ### Step 1: Understand the Condition Reena is experiencing high blood pressure, which can lead to symptoms such as headache and dizziness. The goal is to identify the hormone that helps to lower blood pressure. ### Step 2: Analyze Each Hormone 1. **Aldosterone**: - Secreted by the adrenal glands. - Function: It promotes the reabsorption of sodium and water in the kidneys. - Effect on Blood Pressure: This leads to an increase in blood volume and consequently raises blood pressure. - **Conclusion**: Aldosterone does not help in reducing blood pressure. 2. **Cortisol**: - Also secreted by the adrenal glands. - Function: It primarily increases blood glucose levels by stimulating gluconeogenesis in the liver. - Effect on Blood Pressure: While cortisol has various effects on metabolism and stress response, it does not directly lower blood pressure. - **Conclusion**: Cortisol does not help in reducing blood pressure. 3. **Atrial Natriuretic Factor (ANF)**: - Secreted by the atrial walls of the heart. - Function: It promotes natriuresis (excretion of sodium through urine) and diuresis (increased urine production). - Effect on Blood Pressure: By promoting the excretion of sodium and water, ANF decreases blood volume, leading to a reduction in blood pressure. - **Conclusion**: ANF is the hormone that helps in reducing blood pressure. 4. **Erythropoietin**: - Secreted by the kidneys. - Function: It stimulates the production of red blood cells (RBCs) in the bone marrow. - Effect on Blood Pressure: Erythropoietin is primarily involved in erythropoiesis and does not play a direct role in regulating blood pressure. - **Conclusion**: Erythropoietin does not help in reducing blood pressure. ### Final Answer Based on the analysis, the hormone that will be secreted in the body to reduce blood pressure is **Atrial Natriuretic Factor (ANF)**.
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