QUESTIONS AND ANSWERS From the atmosphere, what structures does air pass through during ventilation?
Starts in atmosphere, then nose, nasopharyngeal space/orophargyneal space (if mouth
breather), then pharynx, larynx, trachea, bronchi, bronchioles, alveoli
What is the purpose of the nasal passages and nasopharynx?
To warm/humidify air as it passes through
What is the difference between respiration and ventilation?
Respiration refers to the exchange of gases in the alveoli, ventilation refers to the
movement of air into the lungs. Respiration is needed to provide O2 to cells and remove
waste products. Also regulates pH of blood.
What are the structures of the upper airway?
nose, mouth, tongue, jaw, pharynx and larynx
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