Which of the processes take place during inspiration?

Use the following processes to answer this question.

I-Ribs move upward and outward

II- Diaphragm relaxes

IIl-Volume of thorax increases

IV-Air is forced out of the lungs

A. I and III only
B. II and III only
C. II and III only
D. III and IV only

Correct Answer:

Option A – I and III only