Give two unique features of cardiac muscles.

Explanation

### Step-by-Step Text Solution:

1. **Identify the Type of Muscle**: Cardiac muscles are a specific type of muscle found only in the heart.

2. **Unique Feature 1 - Structure**: One unique feature of cardiac muscles is that they are branched. Unlike skeletal muscles, which are long and cylindrical, cardiac muscle fibers are interconnected and branched, allowing for coordinated contractions.

3. **Unique Feature 2 - Myogenic Nature**: Another unique feature of cardiac muscles is that they are myogenic. This means that cardiac muscles have the ability to generate their own contractions without needing external nervous stimulation. This intrinsic ability is crucial for the heart's continuous pumping action.

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