Cardiac muscles are found in __ of the heart  

Options

A. myometrium
B. myocardium
C. myotome
D. all the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where cardiac muscles are found in the heart. This requires knowledge of the different layers of the heart and their functions.

2. **Identifying the Options**:
- **Myometrium**: This term refers to the middle layer of the uterus, not the heart.
- **Myocardium**: This term is related to the heart. It refers to the muscular middle layer of the heart wall, which consists of cardiac muscle tissue.
- **Myotome**: This term refers to a group of muscles innervated by a single spinal nerve, which is not related to the heart.
- **Olabdicabin**: This term does not relate to any known anatomical structure in the context of the heart.

3. **Analyzing the Correct Answer**:
- Since the question specifically asks about cardiac muscles, the correct answer is **myocardium**, as it is the layer of the heart that contains cardiac muscle tissue.

4. **Final Answer**: Therefore, cardiac muscles are found in the **myocardium** of the heart.

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