Flow of Blood through the Heart
Specific Purpose: To inform my audience about the process by which blood flows through the human heart
Thesis Statement: Why the heart is important, learning about its general anatomy. What happens during a single cycle of heart contraction, and how blood flows through the different chambers of the heart.
Attention Getter: Do you know that the human heart never stops beating. And the over the course of a lifetime it can beat upt0 2.5 billion times, non-stop! On an average day, the heart pumps 2,000 gallons of blood through 60,000 miles of blood vessels.
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