Heart
What is the heart?
The muscular organ that pumps blood throughout the body.
What type of blood vessel carries blood away from the heart?
the arteries
What type of blood cell is responsible for carrying oxygen?
red blood cells
How does the circulatory system help regulate body temperature?
by adjusting blood flow to the skin
The size of a fist.
What are the tiny blood vessels where gas exchange occurs?
capillaries
What is the liquid part of blood called?
plasma
What is the immune function in the circulatory system?
to transports white blood cells and antibodies to fight infections
About how many times does a heart beat a day?
100,000 times
What carries oxygen-poor blood back to the heart.
veins
What does the heart pump blood through?
vessels
What is the function of the nutrient delivery in the circulatory system?
to carry nutrients from the digestive system to cells.