Respiratory System

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Across
  1. 2. small, hair-like projections in the lungs. They move backwards and forwards together in a fan-like manner to push mucous and foreign particles up into the mouth, where they can be expelled.
  2. 4. more commonly called the throat. The pharynx is both a respiratory and digestive tract. It connects the mouth and the nose to the larynx and oesophagus.
  3. 5. Tubes that carry air in and out of the lungs via the trachea.
  4. 6. The term airways is used interchangeably with respiratory system.
  5. 7. Small, balloon-shaped sacs in the lungs where oxygen and carbon dioxide are exchanged.
  6. 8. Form part of a wider network of muscles and tissues that enable breathing.
Down
  1. 1. is the main muscle that supports the process of breathing. When you breathe in,it contracts and creates a vacuum that draws air into the lungs. When you breathe out, the diaphragm relaxes and forces air out of the lungs.
  2. 3. Split off into smaller airways known as the bronchioles. The bronchioles lead to the alveoli where the exchange of oxygen and carbon dioxide occurs.