Explain the process of breathing in man

Breathing in Humans has two processes 1) Inhalation 2) Exhalation Inhalation:

Inhalation is the process of taking oxygen. During this process, ribs come out and diaphragm moves down. This increases the volume of the lungs and decreases the pressure. This will make the air move towards the lungs.

Exhalation:

Exhalation is a process of throwing out carbon-dioxide. During this process, ribs go down and diaphragm moves up. This decreases the volume of the lungs and increases the pressure. As a result air moves out of the lungs.