Cardiac muscles are
(a) Striated, voluntary with syncytial condition
(b) Unstriated, involuntary, uninucleated
(c) Striated, involuntary with intercalated disc
(d) Involuntary and unstriated

Options

A. Striated, voluntary with syncytial condition
B. Unstriated, involuntary, uninucleated
C. Striated, involuntary with intercalated disc
D. Involuntary and unstriated

Answer

To determine the correct characteristics of cardiac muscles, let's analyze each option step by step:

1. **Understanding Cardiac Muscles**: Cardiac muscles are specialized muscles found in the heart. They are crucial for the heart's function of pumping blood throughout the body.

2. **Analyzing Option A**:
- "Striated, voluntary with syncytial condition"
- Cardiac muscles are indeed striated, but they are not voluntary; they are involuntary. Therefore, this option is incorrect.

3. **Analyzing Option B**:
- "Unstriated, involuntary, uninucleated"
- Cardiac muscles are striated, not unstriated. This option is also incorrect.

4. **Analyzing Option C**:
- "Striated, involuntary with intercalated disc"
- Cardiac muscles are striated and involuntary. They also have intercalated discs that connect the muscle fibers and facilitate synchronized contractions. This option appears to be correct.

5. **Analyzing Option D**:
- "Involuntary and unstriated"
- While cardiac muscles are involuntary, they are striated, not unstriated. Therefore, this option is incorrect.

6. **Conclusion**: Based on the analysis, the correct answer is **(c) Striated, involuntary with intercalated disc**.