Circulatory System Quiz

What is the circulatory system often compared to?

• A mountain

• A freeway or highway

• A river

• A desert

What is the primary function of the circulatory system?

• To produce energy

• To transport blood, oxygen, and nutrients throughout the body

• To control the nervous system

• To break down food

What organ is at the center of the circulatory system?

• Lungs

• Brain

• Stomach

• Heart

How many chambers does the heart have?

• Two

• Three

• Four

• Five

Which blood vessels carry blood away from the heart?

• Veins

• Capillaries

• Arteries

• Aorta

What type of blood vessel connects arteries and veins?

• Arteries

• Capillaries

• Veins

• Aorta

What is the thickest blood vessel in the body?

• Veins

• Capillaries

• Aorta

• Arteries

What is the purpose of red blood cells?

• To fight infection

• To carry oxygen through the body

• To produce hormones

• To digest food

Tags

NGSS.MS-LS1-3

What chemical in red blood cells gives them their red color?

• Oxygen

• Hemoglobin

• Plasma

• Platelets

Tags

NGSS.MS-LS1-2

Which blood cells protect your body when it gets sick?

• Red blood cells

• Platelets

• White blood cells

• Plasma