Bladder neck
Bladder Neck
The Bladder Neck (pronunciation: /ˈblædər nɛk/) is an anatomical structure in the urinary system that controls the flow of urine from the bladder to the urethra.
Etymology
The term "Bladder Neck" is derived from the Latin words "vesica" meaning bladder, and "collum" meaning neck.
Function
The Bladder Neck acts as a valve, preventing urine from flowing back into the bladder from the urethra during urination. It also prevents urine from leaking out of the bladder when not urinating.
Related Terms
- Bladder: The organ that collects urine excreted by the kidneys before disposal by urination.
- Urethra: The duct by which urine is conveyed out of the body from the bladder.
- Urination: The release of urine from the urinary bladder through the urethra to the urinary meatus outside of the body.
- Incontinence: The lack of voluntary control over urination or defecation.
- Urinary System: The organ system that produces, stores, and eliminates urine.
See Also
- Prostate: A gland surrounding the neck of the bladder in male mammals and releasing prostatic fluid.
- Urethral Sphincter: The muscle that surrounds the urethra and controls the flow of urine from the bladder.
External links
- Medical encyclopedia article on Bladder neck
- Wikipedia's article - Bladder neck
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