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Eighth Grade (Grade 8) Circulatory and Immune Systems Questions

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Grade 8 Circulatory and Immune Systems
Blood is blue in the veins.
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
What description is true of red blood cells? (Select all that apply.)
  1. color the blood red
  2. fight infection
  3. transport oxygen
Grade 8 Circulatory and Immune Systems

This question is a part of a group with common instructions. View group »

The myocardium, or muscle, around parts C and D of the heart is thicker than the myocardium around parts B and E of the heart.
Heart Diagram
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
Which factor is not found in human blood?
  1. red blood cells
  2. platelets
  3. plasma
  4. chloroplasts
Grade 8 Circulatory and Immune Systems
Blood pressure is caused by the force
  1. of the lungs sucking in air.
  2. of your biceps contracting.
  3. with which the ventricles contract.
  4. none of the above
Grade 8 Circulatory and Immune Systems

This question is a part of a group with common instructions. View group »

Feature A on the diagram represents the largest vein in the human body.
Heart Diagram
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
What description is true of red blood cells? (Select all that apply.)
  1. color the blood red
  2. fight infection
  3. transport oxygen
  4. live for four months
Grade 8 Circulatory and Immune Systems
Which is NOT one of the three main functions of the cardiovascular system?
  1. delivering needed materials
  2. removing waste materials
  3. producing insulin
  4. fighting disease
Grade 8 Circulatory and Immune Systems
Red blood cells engulf pathogens and destroy them.
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
White blood cells contain hemoglobin.
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
Which side of the heart receives deoxygenated blood from the rest of the body?
  1. right atrium
  2. left atrium
  3. right ventricle
  4. left ventricle
Grade 8 Circulatory and Immune Systems
Veins have to be as strong as arteries.
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
The human heart beats about 200,000 times a day.
  1. True
  2. False
Grade 8 Circulatory and Immune Systems
The alternating expansion and relaxation of the artery that you feel in the wrist is the
  1. coronary artery.
  2. pulse.
  3. plasma.
  4. femur.
Grade 8 Circulatory and Immune Systems
Hemophilia is a disorder that reduces the number of platelets in the blood. Why do people affected by hemophilia have to be careful to avoid injuries?
  1. Their blood cannot carry enough oxygen.
  2. Their blood cannot remove carbon dioxide fast enough.
  3. Their immune system is very low and cannot fight infections.
  4. Their blood cannot clot so they will not stop bleeding.
Grade 8 Circulatory and Immune Systems
The order of blood vessels in which blood circulates through the body, beginning with the heart, is
  1. capillaries, veins, and arteries.
  2. arteries, veins, and capillaries.
  3. veins, capillaries, and arteries.
  4. arteries, capillaries, and veins.
Grade 8 Circulatory and Immune Systems

This question is a part of a group with common instructions. View group »

Which letters represent the chambers of the heart that receive blood?
Heart Diagram
  1. B and C
  2. C and D
  3. D and E
  4. E and B
Grade 8 Circulatory and Immune Systems
The human heart has                 chambers.
  1. two
  2. three
  3. four
Grade 8 Circulatory and Immune Systems
What is the health concern of anemia?
  1. low blood glucose level
  2. hardening of the arteries
  3. low blood hemoglobin
  4. all of the above
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