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Circulatory System Quiz

Test your knowledge of the function and inner workings of the circulatory system with this quiz! 20 Questions.

 
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1

What is the circulatory system?

  • The blood-transporting system.
  • The breathing system.
  • The system of nerves.

2

Which type of vessel carries the blood away from the heart?

  • Vein.
  • Artery.
  • Capillary.

3

What is the largest artery of the cardiovascular system?

  • Femoral.
  • Aorta.
  • Subclavian.

4

When comparing a parallel artery and vein, which of the following would you find?

  • Artery diameter is greater.
  • Vein wall is thicker and lumen is smaller.
  • Artery wall is thicker and lumen is smaller.

5

Freshly oxygenated blood is first received by which heart chamber?

  • Left atrium.
  • Right atrium.
  • Left ventricle.

6

Which layer of the heart wall is thickest?

  • Epicardium.
  • Visceral pericardium.
  • Myocardium.

7

From what source do cells get their food?

  • Oxygen.
  • Blood.
  • Carbon dioxide.

8

Why is oxygen important to blood and to the cells?

  • It is necessary to growth and energy.
  • It brings food to the cells.
  • Oxygen is not important.

9

What part of the blood carries vitamins, minerals, sugar, and other foods to the body's cells?

  • Platelets.
  • Plasma.
  • Red corpuscles.

10

Which element of the blood is round and colorless?

  • White blood cells.
  • Platelets.
  • Red blood cells.

11

What is the main job of the red blood cells?

  • To transport carbon dioxide to the body's cells and carry oxygen away.
  • To transport oxygen to the body's cells and carry carbon dioxide away.
  • To clot blood.

12

Which of the following can best be compared to soldiers?

  • Red blood cells.
  • Platelets.
  • White blood cells.

13

What happens when a clot occurs in an undamaged blood vessel?

  • You bleed to death.
  • The flow to tissues beyond the clot may be blocked.
  • A scab forms on the skin surface.

14

The walls of the blood vessels are composed of three coats; the tunica externa, the tunica media, and the tunica intima. Which type of vessel has only one very thin wall?

  • Arteries.
  • Veins.
  • Capillaries.

15

How many major blood types have scientists discovered?

  • Three; A, B, and O.
  • Four; A, B, AB, and O.
  • One; O.

16

When the pulse is taken in the wrist, which artery is palpated?

  • Radial.
  • Ulnar.
  • Brachial.

17

What is the deep vein of the thigh?

  • Popliteal.
  • Iliac.
  • Femoral.

18

Atrioventricular (AV) valves are held closed by which of the following?

  • Papillary muscles.
  • Pectinate muscles.
  • Chordae tendineae.

19

The "chordae tendineae" structure within the heart is also known by what nick-name?

  • "Harpischord."
  • "Heart strings."
  • "Guitar strings."

20

What is the longest vein in the body?

  • Femoral.
  • Great saphenous.
  • Brachial.

 

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