Oxygenated blood is often referred to as "pure" blood because it is rich in oxygen and has a bright red color, indicating it has completed its journey through the lungs. However, it still contains carbon dioxide and other waste products that need to be transported back to the lungs and kidneys for removal. Therefore, while oxygenated blood is vital for delivering oxygen to tissues, it is not entirely "pure" in the absolute sense.
Copyright © 2026 eLLeNow.com All Rights Reserved.