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Cortisol increases count but decreasesco...

Cortisol increases ____count but decreases______count in the blood.

A

RBC, platelets respectively

B

RBC, WBC respectively

C

WBC, antibodies respectively

D

WBC, RBC respectively

Text Solution

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The correct Answer is:
To answer the question "Cortisol increases ____count but decreases______count in the blood," we can break down the information as follows: ### Step-by-Step Solution: 1. **Identify the Hormone**: The hormone in question is cortisol, which is a steroid hormone classified under glucocorticoids. 2. **Source of Cortisol**: Cortisol is secreted by the zona fasciculata of the adrenal cortex, which is located on top of the kidneys. 3. **Function of Cortisol**: Cortisol is often referred to as the "stress hormone" because it is released in response to stress and low blood glucose levels. It helps the body manage stress by increasing energy availability. 4. **Effect on Red Blood Cells (RBCs)**: During stress conditions, cortisol increases the count of red blood cells (RBCs). This increase is likely due to the need for more oxygen transport to tissues during stressful situations. 5. **Effect on White Blood Cells (WBCs)**: In contrast, cortisol decreases the count of white blood cells (WBCs). This is because cortisol has immunosuppressive effects, which can reduce the activity and proliferation of immune cells. 6. **Final Answer**: Therefore, cortisol increases RBC count but decreases WBC count in the blood. ### Summary of the Answer: Cortisol increases **RBC count** but decreases **WBC count** in the blood. ---
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