Vocabulary: Respiratory System

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Across
  1. 2. a sheet of skeletal muscle below the lungs, that pushes and pulls as we inhale and exhale
  2. 4. wind-pipe; a tube that connects the larynx to the bronchus/bronchi
  3. 5. tiny sacs of lung tissue, specialized for the movement of gases between air and blood
  4. 7. voice box; a passageway for air moving from pharynx to trachea; contains vocal cords
  5. 10. short, hair-like structures in the nasal passage, trachea and bronchus that filter and sweep contaminants from the respiratory tract
  6. 11. a flap of elastic cartilage that closes over the larynx when food passes by during swallowing
  7. 12. the primary organs of the respiratory system
Down
  1. 1. tiny blood vessels that surround the alveoli, and take part in the exchange of oxygen and carbon dioxide gases
  2. 3. progressively smaller tubular branches of the airways
  3. 6. The two major air passageways that branch from the trachea, and direct air into the left and right lungs
  4. 8. a protective secretion in the respiratory system; helps trap particles like pollen or smoke
  5. 9. is one of the two places where the respiratory system begins; lead to the oropharynx
  6. 13. is one of two places where the respiratory system begins; leads to the nasal cavity/nasopharynx