Certified Healthcare Technology Specialist (CHTS) Process Workflow & Information Management Redesign Practice Exam

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Which organ is NOT a part of the cardiovascular system?

Heart
Lungs
Spleen
Aorta

The correct answer is: Spleen

The spleen is not considered a direct component of the cardiovascular system. The cardiovascular system primarily consists of the heart, blood vessels (arteries, veins, and capillaries), and blood, which work together to circulate blood throughout the body, delivering oxygen and nutrients while removing waste products. While the spleen plays a significant role in the body's immune system and in filtering blood, it is not involved in the direct circulation of blood like the heart or blood vessels. Immunological functions and blood filtration qualities set the spleen apart from the primary components of the cardiovascular system. The heart pumps blood, the aorta serves as a major artery that distributes blood from the heart to the rest of the body, and the lungs facilitate gas exchange, but the spleen's main functions are more aligned with immune response and blood maintenance rather than circulation.