Consider the following match of hormones and select the incorrect one :

Options

A. Cortisol : Anti - inflammatory , immuno - suppressive and stimulate RBC production
B. Thyroxine : Regulate BMR , maintain water - electrolyte balance and support RBC formation.
C. Adrenaline : prepare body for emergency or '3F' conditions.
D. Calcitonin : Decreases bone calcium level in human body .

Answer

To solve the question regarding the incorrect match of hormones, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Identify the Hormones and Their Functions:**
- **Cortisol:** This hormone is secreted by the adrenal cortex. Its primary functions include regulating metabolism, responding to stress, and having anti-inflammatory and immunosuppressive effects. However, it does not stimulate RBC (red blood cell) production.
- **Thyroxine (T4):** This hormone is secreted by the thyroid gland. Its functions include regulating basal metabolic rate (BMR), maintaining water and electrolyte balance, and supporting RBC formation. This description is accurate.
- **Adrenaline (Epinephrine):** This hormone is secreted by the adrenal medulla. It prepares the body for emergency situations, often referred to as the "3F" conditions: fear, fight, and flight. This description is also accurate.
- **Calcitonin:** This hormone is also secreted by the thyroid gland. Its primary function is to decrease calcium levels in the blood. This description is accurate as well.

2. **Evaluate Each Option:**
- **Cortisol:** Incorrectly stated to stimulate RBC production.
- **Thyroxine:** Correctly stated to support RBC formation.
- **Adrenaline:** Correctly stated to prepare the body for emergency situations.
- **Calcitonin:** Correctly stated to decrease bone calcium levels.

3. **Conclusion:**
- The incorrect match is the first option regarding cortisol, as it does not stimulate RBC production. This function is associated with thyroxine.

### Final Answer:
The incorrect match of hormones is **Cortisol**, as it does not stimulate RBC production.

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