The respiratory system test questions

1

Which two structures does the trachea lead to in the lungs?

2

What are the tiny air sacs in the lungs called?

3

When we inhale (breathe in), what happens to the pressure in the thorax?

4

What happens when we exhale (breathe out)?

5

Which statement about atmospheric and exhaled air is correct?

6

What happens during gas exchange in the lungs?

7

What happens when we inhale (breathe in)?

8

Which of these is an adaptation for efficient gas exchange in the air sacs (alveoli)?

9

During exercise, what happens to breathing in humans?

10

Tobacco smoke contains carbon monoxide. What problem does this cause?