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Free Practice Quiz Question List

6 The Cardiovascular System Online Quiz Questions

Use this free practice quiz with 20 questions to review 6 The Cardiovascular System, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: Arteries and veins are named according to the direction blood travels relative to the heart, not according to its oxygen content.

  1. A

    True

  2. B

    False

02
Choose one
1 point

Which statement correctly describes the general roles of the heart's upper and lower chambers?

  1. A

    The ventricles receive blood, and the atria pump it out.

  2. B

    The atria receive blood, and the ventricles pump it out.

  3. C

    Both atria and ventricles only receive blood.

  4. D

    Both atria and ventricles only pump blood out.

03
Fill in the blank
1 point

The wall that separates the right and left sides of the heart is the .

04
Written response
1 point

Which valve lies between the left atrium and the left ventricle?

05
True or false
1 point

True or false: Narrowing an arteriole increases resistance and can reduce blood flow through that vessel.

  1. A

    True

  2. B

    False

06
Choose one
1 point

Why does the left ventricle have a thicker muscular wall than the other heart chambers?

  1. A

    It receives blood directly from the body tissues.

  2. B

    It must pump blood through the lungs only.

  3. C

    It must generate enough pressure to propel blood through the body.

  4. D

    It prevents blood from flowing into the right ventricle.

07
Choose all
1 point

Which statements correctly describe the functions of blood's formed elements? Select all that apply.

  1. A

    Red blood cells transport most of the blood's oxygen.

  2. B

    Red blood cells are the main cells that form clots.

  3. C

    White blood cells help defend the body against infection and other threats.

  4. D

    White blood cells carry most of the blood's oxygen.

  5. E

    Platelets help form clots when a blood vessel is damaged.

08
Fill in the blank
1 point

The small vessels that collect blood from capillaries and carry it toward veins are .

09
Choose one
1 point

In which part of the circulation is blood pressure generally highest?

  1. A

    In the systemic veins

  2. B

    In the systemic arteries

  3. C

    In the venules

  4. D

    In the lung capillaries

10
Written response
1 point

What term describes the volume of blood one ventricle pumps in one minute?

11
Choose all
1 point

Which listed structures does blood pass through, in order, from leaving the right ventricle until reaching the lung capillaries? Select all that apply.

  1. A

    Pulmonary valve

  2. B

    Aortic valve

  3. C

    Pulmonary trunk

  4. D

    Aorta

  5. E

    Pulmonary arteries

  6. F

    Lung capillaries

12
Choose one
1 point

Which type of blood vessel is the main site for the movement of oxygen, nutrients, and other substances between blood and tissues?

  1. A

    Arteries

  2. B

    Veins

  3. C

    Capillaries

  4. D

    Venules

13
Open ended
1 point

Compare what happens to blood in lung capillaries with what happens in body capillaries. Include the direction of oxygen and carbon dioxide movement in both locations.

14
Choose one
1 point

Which blood component helps defend the body against infection and other threats?

  1. A

    Red blood cells

  2. B

    White blood cells

  3. C

    Plasma

  4. D

    Platelets

15
Choose one
1 point

Which blood component is the liquid portion that carries water, dissolved substances, and proteins?

  1. A

    Plasma

  2. B

    Red blood cells

  3. C

    White blood cells

  4. D

    Platelets

16
True or false
1 point

The septum is the wall that separates the right and left sides of the heart.

  1. A

    True

  2. B

    False

17
Choose one
1 point

During a heartbeat, the heart chambers are relaxed. What is happening during this part of the cycle?

  1. A

    The ventricles eject blood from the heart.

  2. B

    The atria pump blood into the arteries.

  3. C

    The heart’s chambers fill with blood.

  4. D

    The valves stop all blood from moving.

18
Choose one
1 point

Which vessel type is the main site where oxygen moves from blood into nearby body tissues?

  1. A

    Arteries

  2. B

    Veins

  3. C

    Capillaries

  4. D

    Venules

19
Written response
1 point

Cardiac output is calculated as heart rate×stroke volume\text{heart rate} \times \text{stroke volume}. If a ventricle pumps 60 mL60\ \text{mL} per beat at 8080 beats per minute, what is its cardiac output in mL/min?

20
Written response
1 point

A pathway carries blood from the heart to tissues throughout the body and then returns it to the heart. Which circuit does this describe?