The human bladder can expand and contract. It is usually emptied voluntarily, once a person is old enough to gain bladder control. If it is not voluntarily emptied, the bladder eventually empties to avoid bursting.
After the kidneys manufacture urine the bladder stores it.
The bladder it is a hollow, triangular-shaped muscular sac that expands and contracts depending on urine volume.
The bladder is located behind the pelvic bone.
The bladder is part of the urinary system in the human body.
The average human bladder will hold 13 ounces of urine.
The bladder is connected to the kidneys via two tubes called your ureters; one tube connects to each kidney.
Stretch receptors help the brain determine when the bladder is full enough for urination.
The bladder controls urination by using sphincter muscles in the urethra. The inner sphincter muscle remains closed until voluntary urination. The outer sphincter muscle is controlled voluntarily.
Controlling the outer sphincter muscle requires human development. Most children are between 18 months and 2 years old before they master bladder control. Some children are even older, and others suffer from bed wetting.
Urinary tract infections are treated with antibiotics. Interstitial cystitis-a long-term inflammation of the bladder wall-is a painful condition that can be treated with medication or surgery.