why is the lung important to the human body
Lung. The lungs are among the hardest-working organs in the body. They expand and contract up to 20 times a minute to supply oxygen to be distributed to tissues all over the body and expel carbon dioxide that has been created throughout the body.Read More.he lungs are among the hardest-working organs in the body. They expand and contract up to 20 times a minute to supply oxygen to be distributed to tissues all over the body and expel carbon dioxide that has been created throughout the body. Read More.