Circulatory System Quiz

What joins the arteries and veins?

• Capillaries
• Muscles
• Lymphatic vessels
• Nerves

Most of the veins in your body carry:

• Deoxygenated blood
• Oxygenated blood
• Nutrients
• Carbon dioxide

Which of the following, about capillaries, is NOT true?

• Capillaries have thick walls.
• Capillaries are the largest blood vessels in the body.
• Capillaries are the smallest blood vessels in the body.
• Capillaries carry oxygenated blood away from the heart.

Which of the following, about veins, is NOT true?

• Substances cannot pass through their walls

• They carry blood to the heart

• They have no valves

• They have thin walls

Which of the following statements about arteries is NOT true?

• Substances can pass through their walls

• They carry blood away from the heart

• They have a thick wall containing muscle

• They have no valves

Which of the following is not a component of blood?

• Plasma

• Plates

• Red blood cells

• White blood cells

Which of the following is not a function of the veins?

• They have more muscle than the atria

• They pump blood

• Substance exchange in cells and blood takes place here

• They connect arteries to veins

Which of the following is not true about the ventricles of the heart?

• They are the lower chambers of the heart

• They are the upper chambers of the heart

Which of the following is not a function of the arteries?

• To carry blood away from the heart

• To carry blood into the heart

• To supply food to the cells

• To supply oxygen to the cells

Which of the following is not part of the circulatory system?

• Arteries

• Capillaries

• Lungs