EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nasal cavity, throat, bronchioles, bronchi, alveoli
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mouth, nasal cavity, bronchi, bronchioles, alveoli
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nasal cavity/mouth, trachea, bronchi, bronchus, alveoli
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nasal cavity/mouth, trachea, bronchi, bronchioles, alveoli
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Detailed explanation-1: -Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.
Detailed explanation-2: -Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)
Detailed explanation-3: -When you inhale through your nose or mouth, air travels down your pharynx (back of your throat), passes through your larynx (voice box) and into your trachea (windpipe). Your trachea is divided into two air passages called bronchial tubes. One bronchial tube leads to your left lung, the other to your right lung.
Detailed explanation-4: -Air enters the body via the nasal and mouth cavities, then the pharynx, larynx, and trachea. At the fifth thoracic vertebrae, the trachea separates into the left and right bronchi. Air enters the lungs via the bronchi.