Question

Observe the figure given as figure (A) and (B) and answer the following
Which of the figures A and B indicate the process of inhalation and which the process of exhalation?

Answer 1

Figure (a) indicates the process of inhalation, and figure (b) indicates the process of exhalation.

In figure (a), the volume of the lungs is increasing as the diaphragm is going down and ribs are moving out, this causes air from outside to move inside the lungs. This process is called inhalation.

In figure (b), the volume of the lungs is decreasing as the diaphragm is going up and ribs are moving inside, this causes air from inside the lungs to move outside the lungs. This process is called exhalation.