Download End of chapter review excretory system

End of chapter review: The excretory system
1. What is the purpose of the excretory system?
The purpose of the excretory system is to ____________________ and to
____________________.
2. What is body waste?
3. Why is excretory system important to the human body? Why is it needed?
4. How is excretory system different from the other three body systems: circulatory,
respiratory and digestive systems?
5. What are the main parts/ organs of the excretory system?
6. What pathway does the cell waste ammonia take, as it gets excreted from the body?
Ammonia → ___________ → ___________ → ____________ → ___________ → ___________
→ ____________ → ______________
7. How do kidneys clean the blood?
8. The official filters in your body are called _______________ and are found inside what
organ? _____________________
9. Your blood passes through the kidneys about how many times a day?
10. What happens to people whose kidneys stop working?
11. What is urine made up of?
12. How does your bladder know when it is time for you to go?
13. What are the four types of body wastes your body needs to get rid of? What system
(working as part of the excretory system) helps get rid of each of these?
Body Waste
Body System
14. How is perspiration important to regulating body temperature?
15. What is sweat made up of?
16. How does sweat leave the body?