The respiratory system's structured pathways enable breathing by carrying oxygen to the lungs and filtering out harmful substances, explains WebMD. Respiratory organs also expel carbon dioxide from the body and transport... More »

The major organs of the respiratory system are the lungs, trachea, bronchi and diaphragm. The respiratory system works together with the cardiovascular system to deliver oxygen to the organs and with the autonomic nervou... More »

The primary function of the respiratory system is to provide oxygen to every part of the body through the process of inhaling oxygen and exhaling carbon dioxide. The respiratory system consists of tissues and organs insi... More »

Bronchioles are tiny airways that carry oxygen to alveoli, or air sacs, in the lungs and help stabilize breathing in the respiratory system, according to About.com. Bronchioles are lined with smooth muscular walls that c... More »

The respiratory system draws in fresh air from the environment, exchanges oxygen for waste gases in the lungs and expels the spent air back into the environment before taking another breath. The oxygen is then circulated... More »

www.reference.com Science Human Anatomy Organs

The major organs of the respiratory system are the lungs, trachea, bronchi and diaphragm. The respiratory system works together with the cardiovascular system to deliver oxygen to the organs and with the autonomic nervou... More »

The respiratory system supplies the body with oxygen, which provides energy to the cells. Another important function of the respiratory system is to remove carbon dioxide from the blood stream. More »