Inhalation And Exhalation

Question 1

Step 1

Answer 1

Inhalation: diaphragm contracts
Exhalation: diaphragm relaxes

Question 2

Step 2

Answer 2

Inhalation: external intercostals contract
Exhalation: internal intercostals contract

Question 3

Step 3

Answer 3

Inhalation: chest cavity increases in volume
Exhalation: chest cavity decreases in volume

Question 4

Step 4

Answer 4

Inhalation: pressure inside decreases(the atmospheric pressure is higher than in the lungs)
Exhalation:pressure inside increases

Question 5

Step 5

Answer 5

Inhalation:air flows from high to low pressure into the lungs
Exhalation:air flows from high to low pressure out of the lungs