Whether micturition is a reflex action or voluntary mechanism?

Explanation

### Step-by-Step Solution:

1. **Definition of Micturition**:
- Micturition is the process of expelling urine from the urinary bladder. It is a physiological process that involves the coordination of various muscles and nerves.

2. **Understanding Reflex Actions**:
- A reflex action is an involuntary and nearly instantaneous movement in response to a stimulus. It is controlled by the spinal cord and does not require direct involvement of the brain for the immediate response.

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