The heart is the most vital organ of human being. The heart is a muscular organ that pumps blood throughout the body,delivering oxygen and transforming carbon dioxide.Blood with oxygen is pumped away from the heart through blood vessels called arteries.After travelling through the body,the blood then circulates back to the heart carrying carbon dioxide in other blood vessels called veins.Inside the heart the carbon dioxide is taken out of the blood and oxygen is returned.
the heart deliver oxygen and transforms carbon dioxide
the heart takes carbon dioxide out of the blood
the heart pumps blood throughout the body
the heart is the most necessary human organ
the paragraph definitely stated that
Identifying topic of paragraph
The main idea of the paragraph is that