What are the organs for respiration and their important function?

Answer 1

The organs for respiration include the nose, trachea, bronchus, lungs, aveoli, and diaphragm. When you breath in the nose has hairs called cilia. The nose is also lines with mucous. The two put together act as a filtering system from dust and other contaminates. The air then passes down the trachea, through each bronchus, and into the lungs. The air then enters the aveoli which are tiny little sacs connected to blood vessels. The aveoli remove the air from your body that is high in carbon dioxide and low in oxygen and replace it with air that is high in oxygen and low in carbon dioxide. When you exhale the air then goes from the aveoli, into the lungs, through the bronchus, into the trachea, and out the nose. The diaphragm is a sheet of muscle that that stretches across the body. It separates the chest area and the stomach area. The purpose of the diaphragm is to keep a vacuum type atmosphere on the outside of the lungs so that we can inhale and exhale easily. Without this vacuum it would be impossible to breath as we would be trying to bring in air into a cavity that is already filled with air.

Answer 2

External respiration, commonly known as breathing, is the exchange of oxygen and carbon dioxide between a human and its environment.