What is micturition?

Explanation

### Step-by-Step Text Solution:

1. **Definition of Micturition**: Micturition is the physiological process of expelling urine from the urinary bladder through the urethra to the outside of the body.

2. **Storage of Urine**: Urine is produced by the kidneys and is stored in the urinary bladder until it reaches a certain volume that triggers the urge to urinate.

3. **Signal for Micturition**: When the bladder is full, stretch receptors in the bladder wall send signals to the brain indicating that it is time to empty the bladder.

...