structures

• What is the structure that connects the back of the nose and mouth to the trachea?

  Larynx
• What is the primary function of the larynx?

  allows air to pass, plays a role in sound production.
• What is the epiglottis made of?

  Cartilage covered by mucous membrane
• What is the function of the epiglottis during swallowing?

  covers trachea stopping food entering the airway.
• What are the main functions of the airways?

  • passage for air to enter/exit lungs
  • filters dust/pathogens from incoming air
  • Clears mucus/unwanted materials from the airways
• What shape are the rings of cartilage in the trachea?

  "C" shaped, opening at the back
• What is the main function of the cartilage in the bronchi?

  keeps bronchi open during air passage
• What type of tissue lines the trachea?

  Ciliated epithelium tissue
• How do ciliated cells in the trachea function?

  removes dust/pathogens by moving mucus upwards.
• How does the structure of bronchioles differ from that of bronchi?

  Bronchioles; no rings of cartilage and consist of smooth muscle.
• What is the main function of bronchioles?

  transport air to alveoli.