Which organ is primarily responsible for pumping blood throughout the human body?

Explanation

The heart is a muscular organ that pumps blood through a network of blood vessels, delivering oxygen and nutrients to tissues while removing waste products like carbon dioxide. It beats an average of about 60 to 100 times per minute at rest, and its rhythmic contractions are controlled by electrical signals originating in a region called the sinoatrial node. Cardiovascular disease, which affects the heart and blood vessels, remains one of the leading causes of death worldwide. Explore more Everyday Science MCQs on mcqstutor to keep practicing.