➤ It is one of the organogenic elements.

➤ Oxygen is involved in respiratory processes, combustion and incomplete oxidation reactions, controls thermoregulation, protects against pathogens, and affects genetic processes.

➤ Damage to cell membranes and nucleic acids can lead to impaired circulatory, respiratory, and central nervous system function.

➤ Leads to rapid aging under the influence of reactive oxygen species (oxygen molecule with an extra electron).

➤ Different types of hypoxia.

➤ Antidote: inhalation of oxygen.

​​➤ O₂ - medical oxygen gas not less than 99.5%.

➤ Oxygen therapy and oxygen barotherapy - inhalation of O₂ for the treatment of lung and heart diseases.

➤ Introduction O₂ subcutaneously

for the treatment of gangrene and trophic ulcers.

➤ Patients suffering from oxygen deficiency (in various forms of hypoxia) are provided with a ventilator.

➤ It is used in case of respiratory diseases, injuries, surgery and intensive care.

➤ To increase the level of oxygen in the blood and the oxygenation process.

➤ It is used in general anesthesia.

➤ In patients with ACS (to alleviate the condition and prevent heart complications).

➤ Diaphragmatic (deep) breathing to improve physical endurance and relieve tension.

➤ Oxygen deprivation leads to impaired blood circulation, respiratory system, and CNS.

➤ Antidote: inhalation of oxygen.

➤ O₂ exhibits paramagnetic properties - it is attracted by a magnetic field due to its two unpaired electrons.

➤ Liquid oxygen is attracted by a magnet.

➤ Liquid oxygen is light blue in color.

➤ Oxygen deprivation is the cause of "mountain sickness".