Q1define inhalation and exhalation?​

inhalation

Inhalation is a vital physical process and is autonomous that occurs without concise or control. However, breathing as a process can be controlled or interrupted to certain limits.Inhalation is an active process that requires energy.It allows the intake of air that carries oxygen into the lungs, which is then diffused into the bloodstream.

exhalation

Exhalation is also a vital physical process and is autonomous that occurs without concise or control. However, the process can be controlled or interrupted to certain limits.The main purpose of expiration is to get rid of carbon dioxide that is produced in the body by the process of cellular respiration. Exhalation results in a decrease in the volume of the lungs by the relaxation of various respiratory muscles.

This gel or liquid can be placed under the tongue of an unconscious person. this is important because you should never pour anything down the throat of an unconscious person-- s/he could choke.