Copper Wool- Skein, Pad, Wad - 3.5 Oz Skein Fine Grade 1/0 Grade - Made in USA! by Rogue River Tools. $ 16 99 Prime(4-5 days) FREE Shipping on eligible orders. More Buying Choices. $16.99(2 new offers) 4 out of 5 stars 2. Product Features. Great for cleaning and general use where steel or brass wool isn't preferred.
During inhalation or exhalation air is pulled towards or away from the lungs, by several cavities, tubes, and openings. The organs of the respiratory system make sure that oxygen enters our bodies and carbon dioxide leaves our bodies. The respiratory tract is the path of air from the nose to the lungs.
The respiratory system, also called the gas exchange system, is the body getting rid of carbon dioxide and taking in oxygen. Carbon dioxide, a waste product, goes out of the body. Oxygen, which the body needs, comes in. The first step in this process is breathing in air, or inhaling.