Gas exchange in Humans - g

Question 1

Define the term breathing

Answer 1

The contraction and relaxation of the diaphragm and intercostal muscles to change the size of the lungs. It is the way that oxygen is taken into our bodies and carbon dioxide removed

Question 2

Define the term ventilation

Answer 2

The movement of air into and out of the lungs

Question 3

What main part of the respiratory system is involved in gas exchange in the body

Answer 3

The thorax

Question 4

Describe the order in which the oxygen enters the body for gas exchange

Answer 4

Trachea, branches into two bronchi, branches into smaller bronchioles, alveoli, capillary

Question 5

Describe the journey for carbon dioxide regarding to air leaving the body for gas exchange

Answer 5

Same as oxygen but in reverse