Study of heart is

Options

A. Chondriology
B. Angiology
C. Haematology
D. Cardiology.

Answer

To solve the question "Study of heart is", we need to analyze the provided options one by one to identify which one correctly describes the study of the heart.

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for the term that specifically refers to the study of the heart.

2. **Evaluate the Options**:
- **Option A: Chondrology**: This term refers to the study of cartilages. Since it is related to cartilages and not the heart, this option is incorrect.
- **Option B: Angiology**: This term refers to the study of the circulatory system, including blood vessels (arteries and veins) and the lymphatic system. While it relates to the circulatory system, it does not specifically focus on the heart. Therefore, this option is also incorrect.
- **Option C: Hematology**: This term refers to the study of blood and its disorders. It does not pertain to the heart directly, making this option incorrect as well.
- **Option D: Cardiology**: This term specifically refers to the study of the heart, including its anatomy, structure, function, and diseases. This is the correct option.

3. **Conclusion**: After evaluating all the options, we conclude that the correct answer is **Option D: Cardiology**.

### Final Answer:
The study of the heart is known as **Cardiology**.

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