Circulatory System Review

Which part of blood is a yellowish liquid made mostly of water?

• Plasma

• Red blood cells

• White blood cells

• Platelets

The main job of platelets is to

• Fight off infection

• Transport oxygen

• Create blood clots

• Carry carbon dioxide

Red blood cells contain a protein called hemoglobin that carries

• Carbon dioxide

• Oxygen

• Water

• Glucose

Which component of blood fights off infection?

• Plasma

• Red blood cells

• White blood cells

• Platelets

Who would you expect to have a higher count of red blood cells?

• An active person who exercises

• An inactive person who doesn't exercise

• A person who is sick

• A person who drinks a lot of water

The right side of the heart contains

• Oxygenated blood

• Deoxygenated blood

The left side of the heart contains

• Oxygenated blood

• Deoxygenated blood

Arteries carry blood ____

• Away from the heart

• Back to the heart

• Into cells

Veins carry blood ______

• Away from the heart

• Back to the heart

• Into cells

The smallest type of blood vessels are

• Arteries

• Veins

• Capillaries

• Aorta