In mammals diaphragm makes a partition between

Options

A. Lungs and stomach
B. Stomach and heart
C. Thoracic and abdominal cavities
D. Lungs and heart .

Answer

**Step-by-Step Solution:**

1. **Understanding the Diaphragm**: The diaphragm is a dome-shaped muscle located at the base of the thoracic cavity. It plays a crucial role in the process of breathing.

2. **Function of the Diaphragm**: The primary function of the diaphragm is to assist in respiration. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and allowing air to be drawn into the lungs. Conversely, when it relaxes, it moves upward, helping to expel air from the lungs.

3. **Location of the Diaphragm**: The diaphragm serves as a partition between two major body cavities: the thoracic cavity (which contains the lungs and heart) and the abdominal cavity (which contains the stomach and other digestive organs).

4. **Analyzing the Options**:
- **Option A**: Lungs and stomach - Incorrect, as the diaphragm does not separate these two organs directly.
- **Option B**: Stomach and heart - Incorrect, as the diaphragm is not located between these two organs.
- **Option C**: Thoracic and abdominal cavity - Correct, as the diaphragm is indeed the structure that separates these two cavities.
- **Option D**: Lungs and heart - Incorrect, as both of these organs are located within the thoracic cavity and are not separated by the diaphragm.

5. **Conclusion**: Based on the analysis of the diaphragm's function and location, the correct answer is that the diaphragm makes a partition between the thoracic and abdominal cavity.

**Final Answer**: The diaphragm makes a partition between the thoracic and abdominal cavity.

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