name comes from the Greek.«Oxy genes» - «acid forming."7 is an element of the periodic system, atomic number - 8. There is a 2 elemental form: oxygen O2 and O3 ozone.In the free state, this gas is colorless and odorless.

The interaction with all the chemical elements oxygen, forms a plurality of compounds.The most common are the hydroxides, peroxides, oxides and other derivatives.

How does the oxygen in the human body?



larger the amount required growing organism and those involved in intense physical activity.Generally respiratory activity depends on many external factors.For example, if you stand under sufficiently cool shower, the amount of oxygen consumed by you increase by 100% compared to the conditions at ambient temperatures.That is, the more one gives warmth, the more it becomes the frequency of breathing.Here are some interesting facts about this:
  • 1 hour a person consumes 15-20 liters of oxygen;

  • amount of oxygen consumed: while awake increased by 30-35% during the quiet walk - by 100%
    , while light work - by 200%, with heavy physical work - 600% or more;

  • activity of respiratory processes depends on the capacity of the lungs.For example, the athletes it is more the norm by 1-1.5 liters, but for professional swimmers can reach up to 6 liters!

  • The greater capacity of the lungs, the lower respiratory rate and the greater the depth of inhalation.An illustrative example: the athlete makes 6-10 inhalations per minute, whereas a normal person (not a competitor) breathes with a frequency of 14-18 breaths per minute.

So why do we need oxygen?



It is necessary for all life on earth, the animals consume it during respiration, and plants emit it in the process of photosynthesis.In every living cell contains more oxygen than any other element - about 70%.

It is composed of molecules of substances - lipids, proteins, carbohydrates, nucleic acids and small molecule compounds.And a man's life would be unthinkable without this important element!

its metabolic process is as follows: first it goes through the lungs into the bloodstream, where it is absorbed by hemoglobin and oxyhemoglobin forms.Then, through the blood "transported" to all the cells of organs and tissues.In a related state as it enters the water.In tissues consumed mainly in the oxidation of many substances during their metabolism.Further metabolized to water and carbon dioxide, then excreted from the body through the respiratory organs and excretory systems.

excess oxygen



to human health is very dangerous Prolonged inhalation of air enriched in this element.High concentrations of O2 in the tissues can cause the appearance of free radicals, which are "destroyers" of biopolymers, more precisely, their structure and function.

However, in medicine for the treatment of certain diseases is still used procedure oxygen saturation under high pressure, which is called hyperbaric oxygen therapy.

Lack oxygenium



If the tissues of the body supplied with enough oxygen or broken his disposal, then the phenomenon of hypoxia (oxygen starvation or).

reasons:


  • lowering of the partial pressure of O2 in the inhaled air;
  • Reducing the number of red blood cells or hemoglobin content in them;
  • hemoglobin can not bind, transport or give away item tissues and organs;
  • Violation of redox processes;
  • disorders of heart activity, breathing or circulation;
  • Avitaminoses;
  • endocrinopathies;
  • Acute poisoning with hydrocyanic acid.

Signs of deficiency at the termination of admission O2:


  • loss of consciousness;
  • fatigue;
  • shortness of breath;
  • heart palpitations;
  • low immunity;
  • disruption of the higher parts of the central nervous system.
Author: Eugene Esipovich | Photo Collage TutKnow.ru