The respiratory system

12345678
Across
  1. 4. the part of the body that is surrounded by the ribs, between the neck and the waist
  2. 7. a round part that sticks out from a surface
  3. 8. the area at the top of the throat that contains the vocal cords
Down
  1. 1. either of the two openings at the end of the nose that you breathe through
  2. 2. any of three very small, curved bones on the inside surface of the nose on each side:
  3. 3. the production of vocal sounds and especially speech
  4. 5. the layer of muscle between the lungs and the stomach, used especially to control breathing
  5. 6. either of the pair of posterior apertures of the nasal cavity that open into the nasopharynx