The process of respiration requires oxygen to break down food and convert it into energy along with the release of carbon-dioxide gas. For this purpose we need a medium for taking in oxygen and expelling out the carbon-dioxide. This purpose is solved by a process called breathing.
The process of taking in oxygen rich air and giving out air rich in carbon-dioxide is referred to as breathing. It is an endless process that continuesthroughout the lifeof a living organism.
The process of breathing is carried out fluently using the respiratory organs.
The process of breathing in oxygen rich air through the respiratory organ is called inhalation.
The process of breathing out carbon-dioxide rich air through the respiratory organ is called exhalation.
One breath equals to the composition of one inhalation and one exhalation. Number of times a person breathes in a minute is referred to as breathing rate.