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Eighth Grade (Grade 8) Circulatory and Immune Systems Questions

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Grade 8 Circulatory and Immune Systems
What part do valves play in the circulatory system?
  1. to speed up blood flow
  2. to slow down blood flow
  3. to keep blood flowing in the same direction
  4. to increase the amount of oxygen around the body
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
What purpose do red blood cells serve in the circulatory system?
  1. carry oxygen around the body
  2. carry carbon dioxide around the body
  3. to fight infections
  4. to clot blood
Grade 8 Circulatory and Immune Systems
What are the chambers of the heart?
  1. atria or auricles and ventricles
  2. veins and arteries
  3. adenoids and tonsils
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
What are the functions of blood?
  1. helps regulate your body temperature
  2. transports oxygen, nutrients, & hormones through the body
  3. defends the body from infection
  4. all of the above
Grade 8 Circulatory and Immune Systems
Which statement provides an accurate description of veins?
  1. high pressure, elastic walls, takes blood away from the heart
  2. low pressure, thin walls, takes blood back to the heart
  3. high pressure, thin walls, takes blood back to the heart
  4. low pressure, elastic walls, takes blood away from the heart
Grade 8 Circulatory and Immune Systems
Pulmonary veins come from the lungs and are the only veins in your body that do what?
  1. Get rid of deoxygenated blood
  2. Carry liquid wastes
  3. Carry little bits of iron in them
  4. Carry oxygenated blood
Grade 8 Circulatory and Immune Systems
Capillaries have thin walls that allow what to happen?
  1. Oxygen and nutrients to flow out of the blood to the cells
  2. Blood to flow in very narrow places
  3. Cuts to heal quickly
  4. Blood to stop flowing if needed
Grade 8 Circulatory and Immune Systems
Which are parts of your circulatory system?
  1. It's your bones and ligaments.
  2. It's your lungs and trachea.
  3. It's your heart and blood.
  4. It's your nervous system.
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
Grade 8 Circulatory and Immune Systems
What is the largest artery?
  1. aorta
  2. pulmonary artery
  3. superior vena cava
Grade 8 Circulatory and Immune Systems
Blood pressure is cause by
  1. the force of the lungs sucking in air
  2. the force of your biceps contracting
  3. the force with which your ventricles contract
  4. none of the above
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