What is the function of the circulatory system?
•
Use blood
____________________________________________________________________
•
Use ____________ to remove ____________________ and ________________
products from ________________ in the body
What is the path that blood follows?
1. ___________ (pumps blood)
2. ___________ (carrying __________)
3. ___________ (gives ____________ and ____________ to __________, absorbs
carbon dioxide and waste)
4. ___________ (carrying _____________________)
5. ___________
6. ___________ (O2 diffused into blood, CO2 diffuses out)
7. ___________,
8. then _________ again (carrying _____________)
What are arteries?
•
Blood vessels that carry blood ______________ from the heart. (Remember
_______________.)
•
Carry ________________ (unless they are going to the lungs)
What are veins?
•
Blood vessels that carry blood ____________________ the heart.
•
Carry _______________________ (unless they are coming back from the lungs)
What are capillaries?
•
Tiny ______________ of blood vessels, connecting _______________ and
_________________
•
Found in all _______________ of the body
•
Where ____________________ of ____________________________ happens
•
So small that blood cells pass in single file
What diffuses in and out of capillaries in the tissues of the body?
•
All over the body (arms, legs, etc.), there are _______________.
•
In these capillaries:
–
______________ diffuses _________________ from the blood ________ the
tissue
–
______________________ diffuses _________ to the blood _________ the
tissue
–
Nutrients diffuse ___________ from the blood _______ the tissue
–
_____________ products diffuse _______ to the blood from the tissue
What types of cells are found in the blood?
•
Red blood cells ___________ oxygen. A protein called _____________ on the red blood
cells carries the oxygen. __________________
•
White blood cells are involved in the ____________ system; they ______________ you
from disease. ___________________
How does the circulatory system work together with the respiratory
system?
•
In the lungs, capillaries wrap around ____________, so that oxygen can _________ into
the blood, and carbon dioxide can _____________ out of the blood.
How does the circulatory system work together with the digestive system?
•
In the small intestines, capillaries are found inside the villi, so that nutrients can
_________ from the small intestines into the ______________.