The respiratory system is a group of organs that provide the body with oxygen. Oxygen is needed for cells in the human body to live. More »

Humans need a respiratory system because it is made up of organs that allow them to breathe. Breathing delivers oxygen to the body and takes away carbon dioxide. Every cell in the body needs oxygen to obtain energy from ... More »

Bronchitis constricts and inflames the bronchial tubes, reducing airflow between the lungs and the trachea, or windpipe, according to Nemours. Tissue lining the bronchial tubes becomes irritated and overproduces mucus, m... 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 »

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), w... More »

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Humans need a respiratory system because it is made up of organs that allow them to breathe. Breathing delivers oxygen to the body and takes away carbon dioxide. Every cell in the body needs oxygen to obtain energy from ... More »

The circulatory and respiratory systems work together to give the body the oxygen it needs. They also team up to get rid of carbon dioxide, which is a waste product in the body. More »