Spelling and Vocabulary week of March 3

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Across
  1. 3. the muscle below your lungs that contracts to let air into the lungs and relaxes to push air out of them
  2. 7. the tiny hairlike structures on cells in the lining of many parts of the respiratory system
  3. 8. a measure of volume of a unit cube length, width, height. Whatever the unit of measure is for volume would be a cubic unit
  4. 9. upper part of the trachea where the vocal cords stretch across
Down
  1. 1. a poly hedran with 2 polygonal faces lying in parallel lines and with the other faces parallelograms
  2. 2. a small tube in the lungs that carries air to air sacs
  3. 4. is where oxygen enters the blood and carbon dioxide leaves the blood
  4. 5. a muscular organ that pumps blood through the circulatory system
  5. 6. is a tube that carries air from the larynx to the lungs
  6. 9. an organ of the respiratory system that contains bronchioles and air sacs