Which is the correct sequence of air passage during inhalation?

Nostrils -> Pharynx -> Larynx -> Alveoli

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Trachea -> Nostrils -> Larynx -> Lungs

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Nostril -> Pharynx -> Larynx -> Trachea -> Alveoli

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Nostril -> Trachea -> Pharynx -> Larynx -> Alveoli

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Solution

The correct option is C Nostril -> Pharynx -> Larynx -> Trachea -> Alveoli
Air is inhaled through the nostrils. The nasal cavity helps in filtering the air. The air then enters into the pharynx which is the common passage for food and air. The air then enters into the larynx which is also called the voice box as it vibrates to generate sound. The air finally enters through the trachea which is a long tube. The Trachea at its lower end splits into bronchi. Tertiary bronchi hosts alveoli which is a balloon like structure. The alveoli provides a surface for exchange of gas to take place.

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Question 15
Which is the correct sequence of air passage during inhalation?

(a) $N o s t r i l s \to l a r y n x \to p h a r y n x \to t r a c h e a \to l u n g s$
(b) $N a s a l p a s s a g e \to t r a c h e a \to p h a r y n x \to l a r y n x \to a l v e o l i$
(c) $L a r y n x \to n o s t r i l s \to p h a r y n x \to l u n g s$
(d) $N o s t r i l s \to p h a r y n x \to l a r y n x \to t r a c h e a \to a l v e o l i$

Question 15
Which is the correct sequence of air passage during inhalation?

(a) $N o s t r i l s \to l a r y n x \to p h a r y n x \to t r a c h e a \to l u n g s$
(b) $N a s a l p a s s a g e \to t r a c h e a \to p h a r y n x \to l a r y n x \to a l v e o l i$
(c) $L a r y n x \to n o s t r i l s \to p h a r y n x \to l u n g s$
(d) $N o s t r i l s \to p h a r y n x \to l a r y n x \to t r a c h e a \to a l v e o l i$

The correct sequence of air passage during inhalation?

$N o s t r i l s \to p h a r y n x \to l a r y n x \to t r a c h e a \to a l v e o l i$

Q. Arrange the following in correct order through which the air flows upto alveoli
Larynx, alveoli, trachea, pharynx, external nostrils, internal nostrils, nasal cavities.

Which organ system is consists trachea, larynx and pharynx?

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