Test Your Knowledge on Heart

The heart is a fist-sized organ that pumps blood throughout the body. It is the primary organ of the human circulatory system that helps in circulation of blood throughout the body. The heart is a muscular organ powered by electrical impulses and is made up of four main chambers or sections. The brain and nervous system directs the heart’s functioning (1^✔ ✔Trusted Source
The initiation of the heart beat

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Take part in the following quiz to understand the dynamics of the heart.