Identify the parts labeled in the diagram given below.

1. Nasal cavity, 2. Pharynx, 3. Trachea

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1. Nasal cavity, 2. Alveoli, 3. Trachea

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1. Nasal cavity, 2. Pharynx, 3. Lungs

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1. Pharynx, 2. Trachea, 3. Bronchioles

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Solution

The correct option is A
1. Nasal cavity, 2. Pharynx, 3. Trachea

The parts in the image are:

1. Nasal cavity

2. Pharynx

3. Trachea

At the end of the trachea, the airway splits into left and right bronchi and further into many smaller bronchioles. They continue branching and finally, tiny terminal bronchioles conduct air to the alveoli of the lungs.

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Arrange the following in correct order through which the air flows upto alveoli [2 MARKS]
Larynx, alveoli, trachea, pharynx, external nostrils, internal nostrils, nasal cavities.

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

___ closes the nasal cavity that opens to the pharynx.

Q. Arrange the following parts of the human respiratory tract in the same order in which air flows during expiration:
Nasal chamber, pharynx, larynx, internal nares, trachea, lungs

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