Bronchi help transport air to and from the lungs; they send oxygen to the lungs and allow carbon dioxide to exit the lungs. The bronchi are a part of the respiratory tract that act as an extension of the windpipe.
At the end of the trachea are a right bronchus and a left bronchus. These bronchi play a major role within the conducting zone of the respiratory system. This zone includes the pharynx and the windpipe, which helps move air in and out of the body. The bronchial tubes travel through the lungs and separate into smaller airways known as bronchioles. In the bronchi, air is transported, but there is not a gas exchange.Learn More
Humans need fresh air because it cleanses the lungs and improves metabolic rate, blood pressure and heart rate, according to Pillars of Health. Fresh air also strengthens the immune system, soothes nerves, stimulates appetite and digestion, facilitates sleep, improves concentration, and clears the mind.Full Answer >
Humans inhale air that is rich in oxygen and exhale air that is rich in carbon dioxide. The pathway that air takes in the human body begins with the nose and ends with the alveoli in the lungs.Full Answer >
Air is moved into the lungs when the diaphragm and intercostal muscles contract to enlarge the chest cavity. This expansion causes air pressure within the chest cavity to decrease, allowing higher air pressure from outside the body to be drawn in through the nose and mouth, filling the lungs.Full Answer >
The purpose of respiration is to supply the body with oxygen and eliminate carbon dioxide. Oxygen is essential for cellular respiration as cells cannot exist in the absence of it.Full Answer >