Bladder

Bladder

The urinary bladder is a sac-like muscular organ which stores urine. An adult bladder can hold about 800ml of urine, but it usually is emptied when it accumulates about 400 ml of urine. The urinary bladder has three main layers of smooth muscle which give the bladder its elasticity. There are three openings in the bladder: two from the ureters, and one which empties into the urethra. [CG] {NR}