Życiodajny oxygen
Oxygen is the most important substance for human life, because without it we can live only a few minutes. All living tissue in need of energy for living and functioning, which they obtain as a result of combustion of a fuel (in the form of sugars, fats, and proteins). However, in order to have the combustion process, it is necessary to the presence of oxygen...
Oxygen Combustion
Cells obtain energy in the combustion process, which is necessary oxygen. In the oxygen combustion process produces three end products: energy, water and carbon dioxide is completely redundant. Dispose of the body, therefore, in the process of carbon dioxide gas exchange...
Oxygen in the body
The amount of oxygen your body needs is different and varies depending on the current human activity. Calculated that the average man in the time wypoczywający minutes inhaled approximately 3. 75 l of air, or about 750 cm3 of oxygen, of which the combustion process is used about 1 / 3 of the gas...
As the air enters the body
Air enters the respiratory system of man two ways - through the mouth and nose. Both of these roads come from the back of the mouth, where the soft palate on the principle similar to the revolving door, alternately cuts off the connection to the mouth or the nasal septum.
Nos is the main route through which to get the air into the body, it is specialized for this...
Breathing apparatus
Air enters the body through the nose and mouth, and then passes through a short corridor known as the larynx, for which there is a trachea, which divides into two bronchi lined śluzowatą lining, which removes dust.
Bronchi leading to the lungs in which to divide up into smaller - a payment for each lung (left lung consists of two panels, and the right of the three), and then divided into more and more smaller and narrower, for oskrzeliki and finally end oskrzeliki that flee vesicular to tiny bags, each of which consists of several parts or alveolitis.
the blood and bronchial oskrzelików led by a branch of the pulmonary artery that carries blood without oxygen from the right side of the heart to the lungs...