Pulmonary fibrosis is a heart and lung condition that causes the thickening of the walls of the alveoli, scarring the alveoli and lung tissue. Because of this thickening and scarring, the amount of oxygen that can pass into the blood vessels is reduced causing PF patients to experience shortness of breath. To learn more about the circulatory system works, watch this video where this important part of the human body is discussed.
Blood vessels are an extremely important part of our body since they are the circulatory system responsible for ensuring the transportation of the blood throughout your body. If these blood vessels are not working properly, the blood does not circulate as it should and you may experience some serious health problems, for example, a heart attack. In this video, Hank from CrashCourse, talks about blood vessels, explaining what they are and the basic three-layer structure of blood vessels.
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