The purpose of respiration is to supply the body with oxygen and eliminate carbon dioxide. Oxygen is essential for cellular respiration as cells cannot exist in the absence of it.
The human lungs are the organs responsible for respiration. Together with the nasal cavity, pharynx, larynx and trachea, they form the respiratory system. When a person inhales, air flows through the airways, inflating the lungs and filling them with oxygen. When a person exhales, the air from lungs flows out of the airways. The same cycle repeats with every single breath. As many other functions of the body, respiration is controlled by the autonomic nervous system.Learn More
According to the Franklin Institute, the main purpose of the respiratory system is to supply oxygen to the blood, which delivers oxygen to all parts of the body. This is performed through respiration (i.e., breathing), which involves inhaling oxygen and exhaling carbon dioxide. Through an exchange of gases, the respiratory system acquires oxygen for the blood.Full Answer >
During gas exchange, oxygen from the air breathed in diffuses into the bloodstream, and carbon dioxide from the bloodstream diffuses into the air in the alveoli. This gas exchange occurs through the thin wall of the alveoli.Full Answer >
Humans inhale air that is rich in oxygen and exhale air that is rich in carbon dioxide. The pathway that air takes in the human body begins with the nose and ends with the alveoli in the lungs.Full Answer >
The process in the body that produces carbon dioxide consists of air being taken into the lungs, known as inspiration or inhalation. The air is then taken back out, known as expiration or exhalation.Full Answer >