Inhalation

Question 1

1

Answer 1

Diaphragm contracts and flattens

Question 2

2

Answer 2

Intercostal muscles contract

Question 3

3

Answer 3

Ribs move up and out

Question 4

4

Answer 4

Volume in chest cavity increases

Question 5

5

Answer 5

Air pressure inside the chest cavity decreases below atmospheric air pressure

Question 6

6

Answer 6

Air rushes in from the higher pressure outside the mouth into the area of lower pressure in the lungs