MRCP UK EXAMINATIONS

Detailed explanation-1: -At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the bloodstream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.

Detailed explanation-2: -The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.

Detailed explanation-3: -The respiratory system takes up oxygen from the air we breathe and expels the unwanted carbon dioxide. The main organ of the respiratory system is the lungs.

Detailed explanation-4: -The primary gases tend to be oxygen and carbon dioxide. All organisms that perform aerobic respiration, the process where glucose and other food molecules are broken down for energy, require a regular supply of oxygen. So without oxygen, organisms would not be able to obtain enough energy to power their body processes.