Ohio Assessment for Educators (OAE) Integrated Science (024) Practice Exam

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Study for the Ohio Assessment for Educators (OAE) Integrated Science (024) Exam. Use flashcards and multiple-choice questions with hints and explanations to prep for your test. Ace your exam!

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What is the primary organ responsible for pumping blood in humans?

Liver
Kidneys
Heart
Lungs

The correct answer is: Heart

The heart is the primary organ responsible for pumping blood in humans. It functions as a muscular pump that circulates blood throughout the body, delivering oxygen and nutrients to tissues and removing carbon dioxide and waste products. The heart consists of four chambers: the right atrium and ventricle, which receive and pump deoxygenated blood to the lungs for oxygenation, and the left atrium and ventricle, which receive the oxygenated blood from the lungs and pump it out to the rest of the body. This central role in systemic and pulmonary circulation is critical for maintaining homeostasis and ensuring that all body tissues receive adequate blood supply for their proper function. An understanding of the heart's function is fundamental in the study of human anatomy and physiology, underlying its importance in medical and health-related fields.