Anatomy of the Respiratory Tract

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Across
  1. 2. Short tube consisting of several cartilages connected by muscles. It also contains the vocal chords which are needed to generate sound.
  2. 3. Also known as the windpipe, it links the upper airways to the lungs. It consists of C-shaped rings of cartilage which are connected by smooth muscle.
  3. 6. These split from the trachea into two primary sections which enter the lungs, then split into even smaller sections which enter separate lobes, splitting into even smaller sections within.
  4. 8. Contains curved shelves of bone in which the surface is lined with ciliated respiratory epithelium that secretes mucus and fluid to trap foreign particles.
  5. 10. Flap of cartilage which serves as a switch between the respiratory and digestive tracts, ensuring that food and air each enter in the appropriate location.
Down
  1. 1. These are passageways that connect to the end of the respiratory tree.
  2. 4. These are small, elastic buds that are located a the end of the respiratory tree. They provide a large surface area for gas exchange to occur.
  3. 5. The common pathway for the respiratory and digestive tracts and allows for both air and food to pass.
  4. 7. The smallest airway of the respiratory tract, getting smaller with each split branch.
  5. 9. A pair of organs consisting of elastic sacs with branching passageways where air is drawn in order to conduct gas exchange.