PATHOLOGY MCQ
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1, 2, 3, 4
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2, 3, 1, 4
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2, 1, 3, 4
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4, 2, 3, 1
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Detailed explanation-1: -The sequence of air passage during inhalation is as follows: Nostrils→pharynx→larynx→trachea→alveoli.
Detailed explanation-2: -The correct order of flow of air would be: external nostrils, internal nostrils, nasal cavities, pharynx, larynx, trachea, alveoli.
Detailed explanation-3: -The air travels through the bronchi from the trachea, and then to the bronchioles and then eventually reaches the alveoli for exchange of gases with blood. The respiratory route of air in the respiratory tract is: Nostrils → nasal cavity →Pharynx → Larynx →Trachea → Bronchi → Bronchioles → Alveoli or air sacs.
Detailed explanation-4: -When you inhale (breathe in), air enters your lungs, and oxygen from that air moves to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out). This process, called gas exchange, is essential to life.