Circulatory System Quiz

A muscular organ approximately the size of your fist that pumps blood.

• brain

• heart

• stomach

It carries blood towards the heart.

• vein

• artery

• aorta

Blood cell that carries oxygen.

• platelets

• white blood cell

• red blood cell

It carries blood coming from the lower extremities to the right auricle.

• superior vena cava

• inferior vena cava

• capillaries

The receiving chambers for blood entering the heart.

• atria

• ventricles

• aortic valve

English Physician who was the first to recognize the full circulation of the blood in the human body.

• Dr. William Harold

• Dr. William Harvey

• Dr. William Scott

The heart beats(expands and contracts) ______ times per day.

• 1000

• 10

• 100,000

It carries blood away from the heart.

• arteries

• veins

• capillaries

It allows the blood to move in the proper direction.

• septum

• pericardium

• valve

Blood cell that fights germs and protects the body.

• white blood cell

• red blood cell

• hemoglobin