Parts of the Human Respiratory System and their Function

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Across
  1. 5. The entry point for air into the respiratory system. The nasal cavity is lined with small hairs and mucus membranes that filter and humidify the air as it passes through.
  2. 6. are the two branches of the trachea that lead to the left and right lungs and are divided into smaller and smaller tubes called bronchioles.
  3. 7. known as the voice box is located just below the pharynx. It contains the vocal cords, which vibrate when air passes over them to produce sound.
Down
  1. 1. tiny air sacs located at the end of the bronchioles in the lungs. They are responsible for the exchange of gases between the air and the bloodstream.
  2. 2. Known as the windpipe is a tube that connects the larynx to the bronchi.
  3. 3. A muscular tube that connects the nasal cavity to the larynx and serves as a passageway for both air and food.
  4. 4. The primary organs of the respiratory system and are responsible for the exchange of oxygen and carbon dioxide between the body and the environment.