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___________ are thin muscular tubes that carry oxygenated blood away from the heart to all the body.
ARTERIES
________ are in charge of returning deoxygenated blood to the heart.
VEINS
_____________ form the connection between the arteries and the veins.
CAPILLARIES
_________ pumps blood through the circulatory system.
HEART
What are these?
VEINS
What is this?
ARTERY
What is the function of the circulatory system?
Provide oxygen, nutrients and hormones to muscles, tissues and organs throughout the body.
_______________ is the number of times that your heart beats in an hour.
Heart rate
_________________ is the only circulatory system organ.
HEART
