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 lungs are two organs that pass oxygen into every red blood cell carried through their capillaries; a major organ of the respiratory system, where the exchange of oxygen and carbon dioxide in the bloodstream takes place; expands to suck in air and shrinks to squeeze air out.