LUNGS
LIVER
SKIN
KIDNEYS
FAECES
BREATH
URINE
SWEAT
KIDNEYS
URETERS
URETHRA
BLADDER
two tubes
one tube carries the urine outside the body.
muscular bag that can expand and stores the urine
two bean-shaped organs form urine
SWEAT
CARBON DIOXIDE
TOXINS
LIVER
SWEAT GLANDS
BREATHE OUT