What are the three parts of anesthesia

The modern anesthesia machine is a multipart operating room instrument that includes a ventilator to enhance the delivery of inhaled anesthetics. The anesthesia machine made by Anesthesia Machine Manufacturers has slowly changed from simply a means to anesthetize and oxygenate a patient to an anesthesia terminal joining progressively multifaceted ventilator modes, end-tidal CO2 monitors, end-tidal anesthetic absorptions, negligible alveolar concentration estimators, and a means of monitoring vital signs. Despite all these novelties and new tools added to the anesthesia machine, an understanding of the anesthesia machine is still a core constituent of the practice of anesthesiology. The modern anesthesia machine flawlessly includes a ventilator to allow for optimal anesthetic delivery.
There are four chief purposes of the modern anesthesia machine:

1. Oxygenation
2. The precise combination of anesthetic vapors
3. Suitable ventilation
4. Decrease the introduction of anesthetic vapors to personnel

The anesthesia machine made by Anesthesia Machine Manufacturers can be alienated into three rudimentary areas:
a high-pressure system,
an intermediate-pressure system, and
a low-pressure system. The high and intermediate-pressure systems have pressure gauges in pounds per square inch (psi) or kilopascals (kPa), while the low-pressure system has pressure calculated in centimeters of water (cmH20).

The high-pressure system accepts its stock of oxygen (2200 psi), air, and nitrous oxide (745 psi) from an E-cylinder ('E' denotes the scope of the cylinder) which is devoted to the back of the anesthesia machine. Later, a pressure controller sets the pressure to 45 psi. The high-pressure system is chiefly used when the pipeline supply fails or is not obtainable for connection, such as in a remote anesthesia site. The intermediate pressure system obtains its source of gases from the hospital pipeline supply, which is set to 50 psi. In modern hospitals, anesthesia machines trust the pipeline supply as the main source of gas