It is the process of eliminating waste from our body.
Excretion
It is all the substances that our body does not need and that can be harmful for our health.
Waste
The excretory system is formed by the ________________________ and the __________________________.
urinary system, sweat glands
What are the four parts of the urinary system?
kidneys, ureters, bladder, urethra
How many kidneys do humans have?
Two
What do you call the tubes that connect the kidneys to the bladder?
ureters
This is an organ that stores the urine until it is expelled.
bladder
It is the tube that connects the bladder with outside the body so that urine can be released.
urethra
The skin contains ________________, which are organs that produce a waste substance called sweat.
sweat glands
TRUE or FALSE: The main purpose of sweat is to help regulate our body temperature.
True
Where in the skin does the sweat leave our bodies?
pores
TRUE or FALSE: The combination of waste and water in the glands makes sweat.
True
