Urinary bladder
Urinary bladder
The Urinary bladder (pronounced: /ˈjʊərɪnəri ˈblædər/) is a hollow muscular organ in humans and some other animals that collects and stores urine from the kidneys before disposal by urination.
Etymology
The term "bladder" comes from the Old English word "blǣdre", which has the same meaning. The term "urinary" is derived from the Latin word "urina", which means "urine".
Anatomy
The urinary bladder is located in the pelvic cavity, posterior to the pubic bone and below the parietal peritoneum. It is held in place by ligaments that are attached to other organs and the pelvic bones. The bladder's walls relax and expand to store urine, and contract and flatten to empty urine through the urethra.
Related terms
- Ureter: The tubes that carry urine from the kidneys to the urinary bladder.
- Urethra: The tube that carries urine from the bladder out of the body.
- Cystitis: Inflammation of the bladder, often caused by infection.
- Urinary incontinence: Involuntary leakage of urine.
- Urinary tract infection: An infection in any part of the urinary system, including the bladder.
- Cystoscopy: A procedure used to see inside the urinary bladder and urethra.
- Bladder cancer: A type of cancer that begins in the cells of the bladder.
External links
- Medical encyclopedia article on Urinary bladder
- Wikipedia's article - Urinary bladder
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