The document discusses the four main human body systems - the circulatory system which transports blood, oxygen, and nutrients; the respiratory system which provides oxygen and removes carbon dioxide; the digestive system which breaks down food for nutrients; and the excretory system which eliminates waste and maintains homeostasis. Each system is briefly described with their key functions. The document also includes a challenge question section testing knowledge of the different body systems.

1. Human Body
Systems!!

2. Human Body Systems!
• Circulatory System
• Respiratory System
• Digestive System
• Excretory System

3. Circulatory System!
• The Circulatory
System transports
blood, oxygen, &
nutrients throughout
the body.
– Helps with fighting
infection, bringing
materials to cells, &
regulate body
temperature

5. Respiratory System!
• The Respiratory System provides
• oxygen (O2 ) and removes carbon dioxide
(CO2 ).

6. Respiratory System!

7. Digestive System!
• The Digestive
System break down
food so it can be
used as nutrients
for the body’s cells.

8. Digestive System!

9. Excretory System!
• The Excretory
System eliminates
waste and maintains
homeostasis
(equilibrium).

10. Excretory System!

11. Challenge!
• What system transports blood, oxygen,
and nutrients throughout the body?
– CIRCULATORY
• What system breaks down food so it is
absorbed by the body?
– DIGESTIVE

12. Challenge!
• 1?
– Kidney
• 2.?
– Ureter
• 3.?
– Bladder
• 4.?
– Urethra

13. Challenge!