What term describes the set of organs that allows a person to breathe?

What term describes the set of organs that allows a person to breathe?

• A. Respiratory system
• B. Digestive system
• C. Circulatory system
• D. Nervous system

Answer: (A)

Breathing is carried out by the respiratory system, a group of organs dedicated to taking in air, exchanging gases, and expelling air. It includes the lungs where oxygen moves into the blood and carbon dioxide is released, the airways that conduct air in and out, and the diaphragm and chest muscles that expand the chest to draw air in and relax to push air out. This together-doing is what we mean by respiration, the process of breathing. The digestive system handles breaking down food and absorbing nutrients. The circulatory system pumps blood and transports oxygen and carbon dioxide but relies on the respiratory system to provide the gas exchange at the lungs. The nervous system regulates many activities, including breathing rate, but the set of organs that enables breathing is the respiratory system.

Breathing is carried out by the respiratory system, a group of organs dedicated to taking in air, exchanging gases, and expelling air. It includes the lungs where oxygen moves into the blood and carbon dioxide is released, the airways that conduct air in and out, and the diaphragm and chest muscles that expand the chest to draw air in and relax to push air out. This together-doing is what we mean by respiration, the process of breathing.

The digestive system handles breaking down food and absorbing nutrients. The circulatory system pumps blood and transports oxygen and carbon dioxide but relies on the respiratory system to provide the gas exchange at the lungs. The nervous system regulates many activities, including breathing rate, but the set of organs that enables breathing is the respiratory system.