The opening of the larynx into the pharynx is guarded by

Syrinx

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Epiglottis

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Tracheal wall

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All of these

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Solution

The correct option is B
Epiglottis

The correct option is B:
Explanation of the correct option:
The larynx opens into the pharynx through a cavity called the glottis.
The glottis has a cartilaginous flap called the epiglottis.
The flap covers the glottis during food intake, preventing the entry of food into it.
Explanation of the incorrect options:
Option (A)
Syrinx is the voice box of birds.
Option (C)
The tracheal wall is made up of mucosa, submucosa, musculocartilaginous layer, and adventitia.
Final answer: The opening of the larynx into the pharynx is guarded by the epiglottis.

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

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