Breathing begins when we breathe the air or oxygen through the nose. Then the air goes to the lungs. The lungs get expanded and the diaphragm (a muscle) get contracted. The air then goes down and puts pressure in the chest. Then the oxygen flows to the arteries, red blood cells and to the other parts of the body.
Breathing for Energy
The tissue of tissues of our body need oxygen and air to heat themselves to produce energy. So the oxygen works as a fuel to the tissues to burn to release energy and tuns to carbon dioxide. The lungs feel full and the exiling becomes easy. The carbon dioxide is blown out of the lungs throgh mouth and nose.
Processes in Breathing
The oxygen is delivered into the cells and whole body in the breathing process. The breathing involves two processes called internal respiration and external respiration. The air is inhaled through the nose and then exiled.
External respiration involves exchange of oxygen and carbon dioxide. This exchange happens between air and blood in the lungs.
Internal respiration is the process of delivering the oxygen to cells by hemoglobin in the blood.
A sort of chemical process is involved in the the process of breathing, inhaling and exiling. These process are based on the principle of diffusion. It can be described as the flow of particles in both high and low concentrations. The body maintains the homeostasis by the diffusion process. Diaphragm increases the volume of the thoracic cavity during inspiration. The flow of air is in high pressure to low pressure.
Breathing
Breathing is made possible due to the presence of oxygen in the air. Humans breathe through the lungs. The movements of nose and mouth in to the bronchial tubes make it easy to to breath. The inhaled air and oxygen spread in the blood stream.
