Certified Electronic Health Records Specialist (CEHRS) Practice Exam

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Which of the following is NOT part of the cardiovascular system?

Heart
Blood vessels
Bronchi
Veins

The correct answer is: Bronchi

The correct answer identifies the bronchi as not part of the cardiovascular system. The cardiovascular system is primarily composed of the heart and the network of blood vessels, which include arteries, veins, and capillaries. Its main function is to circulate blood throughout the body, delivering oxygen and nutrients to tissues while removing waste products. The bronchi, on the other hand, are a part of the respiratory system. They are the air passages that diverge from the trachea and lead into the lungs, playing a critical role in conducting air for the process of breathing. Thus, while the cardiovascular system and respiratory system work closely together to maintain homeostasis and ensure that the body receives the oxygen it requires, the bronchi do not function within the cardiovascular system. This distinction explains why the bronchi are not included in the components of the cardiovascular system.