With eye pain, there may be other symptoms too, which may help diagnose the cause of the discomfort. These include: 1  Conjunctivitis-red itchy eyes. 2  Tears. 3  Light sensitivity (photophobia). 4  Discharge, which can be clear, or thick and coloured (pus). 5  The eye being crusted shut after sleep due to discharge.
The process of breathing performs a number of important gas exchanges through inhalation and exhalation. When someone inhales, they contract and move their diaphragm, which allows the lungs to expand. This is a part of the process needed to psychically suck in the air. When a person exhales, the diaphragm relaxes and the movement is undone. This allows air to be gradually pushed out of the lungs.
What is the process by which inhalation occurs during breathing in human beings? This is the process of respiration. It involves bringing in air from outside the body into the lungs. When we breathe in, the size of our chest increases.This happens because â¦when air enters, the lungs expand and the ribs move outwards. Simultaneously, the diaphragm contracts and becomes flat.