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Twelfth Grade (Grade 12) Circulatory and Immune Systems Questions

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Grade 12 Circulatory and Immune Systems
What causes circulatory shock?
  1. low blood sugar
  2. high blood sugar
  3. low blood pressure
  4. high blood pressure
Grade 12 Circulatory and Immune Systems
The wall of these blood vessels are composed of a thin, single layer of squamous cells.
  1. arteries
  2. veins
  3. capillaries
  4. aorta
Grade 12 Circulatory and Immune Systems
What hormone is responsible for the rate of red blood cell production?
  1. serotonin
  2. erythropoietin
  3. interleukins
  4. thrombopoietin
Grade 12 Circulatory and Immune Systems
Which cell is least like the others?
  1. eosinophils
  2. basophils
  3. thrombocytes
  4. neutrophils
Grade 12 Circulatory and Immune Systems
Which statement is true of neutrophils?
  1. They are really unimportant.
  2. They do not do have a role.
  3. They self-destruct with foreign invaders.
  4. They do not exist.
Grade 12 Circulatory and Immune Systems
Which valve controls the flow of blood into the aorta?
  1. aorta
  2. pulmonary valve
  3. pulmonary vein
  4. aortic valve
Grade 12 Circulatory and Immune Systems
Red blood cells make up the most abundant component of blood.
  1. True
  2. False
Grade 12 Circulatory and Immune Systems
Which structure is also referred to as the pacemaker of the heart?
  1. atrioventricular node
  2. sinoatrial node
  3. Purkinje fibers
Grade 12 Circulatory and Immune Systems
Which is NOT considered part of the body's second line of defense?
  1. lacrimal secretions
  2. interferons
  3. complement proteins
  4. phagocytosis
Grade 12 Circulatory and Immune Systems
Where do T cells mature?
  1. pituitary gland
  2. muscles
  3. thymus gland
  4. bone marrow
Grade 12 Circulatory and Immune Systems
What are the smaller branches of veins?
  1. veins
  2. venules
  3. capillaries
  4. arterioles
Grade 12 Circulatory and Immune Systems
What units are used to measure blood pressure?
  1. milligrams of mercury
  2. millimeters of mercury
  3. degrees Fahrenheit
  4. ounces
Grade 12 Circulatory and Immune Systems
Which is not one of the main three types of blood vessels in the body?
  1. arteries
  2. veins
  3. capillaries
  4. venules
Grade 12 Circulatory and Immune Systems
Which is not an important factor involving blood flow?
  1. contraction of the diaphragm
  2. pumping action of the skeletal muscle
  3. valves in the veins
  4. All are important factors.
Grade 12 Circulatory and Immune Systems
The time of day does not affect the blood pressure.
  1. True
  2. False
Grade 12 Circulatory and Immune Systems
Which condition causes blood to be more acidic?
  1. protease deficiency
  2. lipase deficiency
  3. amylase deficiency
Grade 12 Circulatory and Immune Systems
T-cells typically attack a transplanted organ in its new organism.
  1. True
  2. False
Grade 12 Circulatory and Immune Systems
Which wall of the heart is the outermost layer that helps reduce friction?
  1. epicardium
  2. myocardium
  3. endocardium
  4. pericardium
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