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Seventh Grade (Grade 7) Circulatory and Immune Systems Questions

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Grade 7 Circulatory and Immune Systems
The five major barriers of the immune system are
  1. tears, saliva, blood, stomach acid, and mucous membranes.
  2. tears, blood, skin, stomach acids, and mucous membranes.
  3. stomach acid, tears, saliva, skin, and mucous membranes.
Grade 7 Circulatory and Immune Systems
Where does oxygen-rich blood enter first?
  1. right atrium
  2. left atrium
  3. left ventricle
  4. right ventricle
Grade 7 Circulatory and Immune Systems
Where does the exchange of food, oxygen, and waste occur?
  1. lymph vessels
  2. veins
  3. capillaries
  4. arteries
Grade 7 Circulatory and Immune Systems
Blood carries waste products from the cells to the                 to be removed.
  1. stomach
  2. heart
  3. kidneys
  4. brain
Grade 7 Circulatory and Immune Systems
The liquid part of the blood, made up of 90% water, is the
  1. lymph.
  2. plasma.
  3. hemoglobin.
  4. platelet.
Grade 7 Circulatory and Immune Systems
The vessels that return blood to the heart are
  1. capillaries.
  2. arteries.
  3. stem cells.
  4. veins.
Grade 7 Circulatory and Immune Systems
A pulse is what is felt when the arteries expand after each heartbeat.
  1. True
  2. False
Grade 7 Circulatory and Immune Systems
Blood vessels with very thin walls that join the smallest arterioles to the smallest venules are
  1. arteries.
  2. capillaries.
  3. veins.
  4. aorta.
Grade 7 Circulatory and Immune Systems
Where is blood under the greatest pressure?
  1. capillaries
  2. veins
  3. lymph vessels
  4. arteries
Grade 7 Circulatory and Immune Systems
The largest artery in the body is the
  1. aorta.
  2. atria.
  3. endocardium.
  4. pulse.
Grade 7 Circulatory and Immune Systems
The large blood vessels that carry blood away from the heart are the
  1. capillaries.
  2. veins.
  3. arteries.
  4. venules.
Grade 7 Circulatory and Immune Systems
                is the chemical identification tag in blood.
  1. Blood type
  2. DNA
  3. Rh factor
  4. RNA
Grade 7 Circulatory and Immune Systems
What is likely to happen if you have a weakened immune system?
  1. You can get sick often.
  2. You get stronger.
  3. You will be healthier.
Grade 7 Circulatory and Immune Systems
Vaccination is a form of active immunity.
  1. True
  2. False
Grade 7 Circulatory and Immune Systems
What is required to clot blood?
  1. plasma
  2. oxygen
  3. platelets
  4. carbon dioxide
Grade 7 Circulatory and Immune Systems
Red blood cells are the body's defenders that fight pathogens.
  1. True
  2. False
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