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🫁 Respiratory System Quiz

Authored by ANDREW ARCHIBALD

Physical Ed

11th Grade

Used 7+ times

🫁 Respiratory System Quiz
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30 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Where does air enter the respiratory system first?

Mouth/Nose
Trachea
Bronchi
Alveoli

Answer explanation

Air enters through the mouth or nose.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which structure connects the throat to the lungs?

Bronchi
Trachea
Alveoli
Diaphragm

Answer explanation

The trachea is the windpipe that connects throat to lungs.

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the small air sacs in the lungs called?

Bronchi
Bronchioles
Alveoli
Capillaries

Answer explanation

Alveoli are the site of gas exchange.

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which structure branches into smaller bronchioles?

Trachea
Bronchi
Diaphragm
Alveoli

Answer explanation

The bronchi branch into bronchioles.

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which muscle is the primary muscle responsible for breathing?

Heart
Intercostals
Diaphragm
Abdominals

Answer explanation

The diaphragm contracts and relaxes during breathing.

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

During inspiration at rest, what happens to the diaphragm?

Contracts & flattens
Relaxes & domes up
Contracts & domes up
Relaxes & flattens

Answer explanation

The diaphragm contracts and flattens to allow air in.

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

During expiration at rest, what happens to pressure inside the lungs?

Decreases
Increases
Stays same
Becomes negative

Answer explanation

Pressure increases so air is pushed out.

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