What Does The Respiratory System Do?

What are the 5 main functions of the respiratory system?

There are five functions of the respiratory system.Gas Exchange – oxygen and carbon dioxide.Breathing – movement of air.Sound Production.Olfactory Assistance – sense of smell.Protection – from dust and microbes entering body through mucus production, cilia, and coughing..

What is the most important thing about the respiratory system?

The respiratory system does two very important things: it brings oxygen into our bodies, which we need for our cells to live and function properly; and it helps us get rid of carbon dioxide, which is a waste product of cellular function.

How does the respiratory system help us smell?

Olfaction, or Smelling, Is a Chemical Sensation. The process of olfaction begins with olfactory fibers that line the nasal cavities inside the nose. As air enters the cavities, some chemicals in the air bind to and activate nervous system receptors on the cilia.

What is the main function of lungs in a human body?

The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood.

What are the 4 main functions of the respiratory system?

What does the respiratory system do?Allows you to talk and to smell.Brings air to body temperature and moisturizes it to the humidity level your body needs.Delivers oxygen to the cells in your body.Removes waste gases, including carbon dioxide, from the body when you exhale.More items…•