Atherosclerosis is a very common disease in which plaque builds up inside arteries. Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, plaque hardens and narrows the arteries, limiting the flow of oxygen-rich blood to body organs. Atherosclerosis can lead to serious problems, including heart attack, stroke, or even death (Adapted from “Atherosclerosis | National Heart, Lung, and Blood Institute (NHLBI)”).
Read this website to learn about how does blood transport oxygen and carbon dioxide and about how the circulatory system is optimized for this very specific type of transport.
6.2 The Blood System - Common Subtopic (10%)
Focus more on these understandings, applications and skills:
Example of common questions: