Question

page(s) 468-469 24.1. create a flowchart depicting the movement of blood through the cardiovascular system. coronary artery disease, caused by a buildup of plaque in the arteries of the heart, is common in western countries where diets consist of fatty foods. symptoms of the disease include chest pain, fatigue, swelling in the feet, and shortness of breath. which of the following explains why shortness of breath may be a symptom of coronary artery disease? correct answer(s) the cardiovascular system is responsible for importing gases such as oxygen into the body. the lungs are likely not absorbing a sufficient amount of oxygen. the cardiovascular system is responsible for circulating oxygen - rich blood to respiratory cells. cellular mitochondria may not be receiving sufficient oxygen.

Explanation:

Coronary artery disease reduces blood flow to the heart muscle, weakening its ability to pump oxygen-rich blood. Mitochondria in cells need oxygen for energy production; insufficient oxygen delivery to mitochondria (due to reduced blood flow) leads to less energy for respiratory muscles, causing shortness of breath. The other options are incorrect: gas import is the respiratory system’s role, lungs are not the issue here, and the cardiovascular system does not circulate blood to respiratory cells for gas exchange (that is the respiratory system’s function).

Answer:

The option stating "Cellular mitochondria may not be receiving sufficient oxygen."