bladder

Wikipedia logo

Bladder

Noun

The bladder is the internal organ where urine collects.
An hour after drinking four glasses of water his bladder was full.
A bladder is a bag made of a material that stretches to hold a liquid or gas.
The football has a bladder that holds air so it will bounce.

Parts of the body (edit)
head	ears - eyes - eyebrow - nose - mouth - lips - tongue - tooth (pl. teeth) - cheeks - chin
torso	neck - throat - shoulders - chest - breasts - ribs - abdomen - pelvis - back
internal organs	heart - lungs - liver - stomach - kidneys - intestines - bladder - ovaries - uterus/womb
extremities	arms - hands - fingers - legs - feet - toes
sex organs	penis - vagina - testicle - ovary - vulva