Autorhythmicity is a special property of the muscles of the ………..

Explanation

**Step-by-Step Solution:**

1. **Understanding Autorhythmicity**: Autorhythmicity refers to the ability of certain muscles to contract rhythmically without external stimuli. This is a key feature of specific muscle tissues in the body.

2. **Identifying the Muscle Type**: The type of muscle that exhibits autorhythmicity is cardiac muscle. This muscle is found in the heart and is responsible for pumping blood throughout the body.

3. **Function of Autorhythmicity in the Heart**: The autorhythmic property of cardiac muscle allows the heart to beat continuously and rhythmically. This is crucial for maintaining blood circulation and ensuring that all body tissues receive adequate oxygen and nutrients.

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