Respiratory System Vocabulary Review

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Across
  1. 3. Large, flat muscle at the bottom of the chest cavity that helps with breathing
  2. 4. A gas needed for cellular respiration that is inhaled through the respiratory system
  3. 6. structure in the throat containing the vocal cords
  4. 7. tiny air sac at the end of a bronchiole in the lungs that provides surface area for gas exchange to occur
  5. 8. tube that connects the larynx to the bronchi; also called the windpipe
Down
  1. 1. tube at the back of the mouth that serves as a passageway for both air and food; also called the throat
  2. 2. one of two large tubes in the chest cavity that leads from the trachea to the lungs
  3. 5. A waste product of cellular respiration that is exhaled from the body