transport system in humans

what does the transport system consists of?

• heart, artery, vein

• red blood cell, heart, vein

• heart, blood vessels, blood

• vein, artery, capillary

what is the function of heart?

• a fluid that transport substances throughout the body

• tubes that carry blood within the body

• an organ that pumps blood throughout the body

the heart has _____ chambers

• 4

• 3

• 2

• 1

the left side of the heart, the chambers have blood rich in ___________.

• carbon dioxide

• oxygen

• nutrients

valves in the chambers is to prevent the blood from flowing _________.

the left ventricle has a ________ wall than the right ventricle.

Blood consists of ___________

what is the function of red blood cell?

• take in and release carbon dioxide

• take in and release oxygen

• take in and release nutrients

artery carry blood away from the heart at _______ pressure.

• low

• high

veins carry blood back to the heart at ______ pressure.

• low

• high