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Lungs (Grade 6)

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Place the events in sequence: A) Air pressure inside your lungs drops; B) The diaphragm contracts; C) Air from outside rushes into your lungs.
  1. A, B, C
  2. B, A, C
  3. C, A, B
  4. B, C, A
The membrane on the surface of the lungs is the
  1. epidermis.
  2. sagittal plane.
  3. visceral pleura.
  4. cell membrane.
The increasingly smaller airways branching off into the lungs are the
  1. air sacs.
  2. bronchial tubes.
  3. capillaries.
  4. alveoli.
What are the bubble-shaped sacs in the lungs where gas exchange takes place?
  1. capillaries
  2. bronchial tubes
  3. alveoli
  4. throat
Which system brings oxygen into the lungs?
  1. digestive system
  2. respiratory system
  3. nervous system
  4. excretory system
The lungs, heart, and esophagus are in the
  1. abdominal cavity.
  2. cranial cavity.
  3. spinal cavity.
  4. thoracic cavity.
What can you infer about the function of the rib cage?
  1. It protects the lungs.
  2. It helps the lungs pump oxygen.
  3. It delivers oxygen from the lungs to the bloodstream.
  4. It connects the trachea to the lungs.
Pulmonary veins carry blood from the lungs and are the only veins in your body that
  1. get rid of deoxygenated blood.
  2. carry liquid wastes.
  3. carry iron in them.
  4. carry oxygenated blood.
The membrane that surrounds the lungs is the
  1. pleural membrane.
  2. carcinogenic membrane.
  3. celluloid membrane.
  4. respiratory membrane.
What happens in the alveoli?
  1. Carbon dioxide is moved from the blood cells into the lungs, and oxygen is moved into the blood cells.
  2. Oxygen is moved into the lungs, and carbon dioxide is moved into the blood cells.
  3. Carbon dioxide is passed into the kidneys.
  4. Oxygen is passed into the liver.
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