In heart of Human bicuspid valve is situated in `:-`

Options

A. Righ auricle and pulmonary aorta
B. Post caval and auricle
C. Left auricle and left ventricle
D. Right auricle and right ventricle

Answer

**Step-by-Step Solution:**

1. **Understanding the Heart Structure**: The human heart consists of four chambers: the right atrium (auricle), right ventricle, left atrium (auricle), and left ventricle.

2. **Identifying the Valves**: There are two main types of atrioventricular valves in the heart: the tricuspid valve and the bicuspid valve (also known as the mitral valve).

3. **Locating the Bicuspid Valve**: The bicuspid valve is located on the left side of the heart. It separates the left atrium from the left ventricle.

4. **Analyzing the Options**:
- Option A: Right auricle and pulmonary aorta - Incorrect, as this does not involve the left side.
- Option B: Postcaval vein and auricle - Incorrect, as this does not relate to the bicuspid valve.
- Option C: Left auricle and left ventricle - Correct, as this is where the bicuspid valve is located.
- Option D: Right auricle and right ventricle - Incorrect, as this refers to the tricuspid valve.

5. **Conclusion**: Based on the analysis, the bicuspid valve is situated between the left auricle and the left ventricle.

**Final Answer**: In the heart of a human, the bicuspid valve is situated between the left auricle and the left ventricle.

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