Micturition
Micturition
Micturition (pronounced: mik-tu-ri-shun) is a medical term that refers to the process of expelling urine from the urinary bladder through the urethra to the outside of the body.
Etymology
The term "micturition" is derived from the Latin word "micturire", which means "to desire to urinate".
Process
Micturition is a complex process that involves both voluntary and involuntary actions. It begins when the urinary bladder is filled with urine, which triggers the micturition reflex. This reflex involves the contraction of the detrusor muscle and the relaxation of the urethral sphincter, allowing urine to flow out of the body.
Related Terms
- Urinary bladder: The organ that collects urine excreted by the kidneys before disposal by micturition.
- Urethra: The duct by which urine is conveyed out of the body from the bladder.
- Detrusor muscle: The muscle of the urinary bladder wall that contracts during micturition to expel urine.
- Urethral sphincter: The muscle that controls the release of urine from the bladder.
Disorders
Disorders related to micturition include urinary incontinence, urinary retention, and overactive bladder. These conditions can be caused by a variety of factors, including age, illness, injury, or neurological disorders.
External links
- Medical encyclopedia article on Micturition
- Wikipedia's article - Micturition
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