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Why does your heart never tire of constantly beating to pump blood throughout your body?

Why does your heart never tire of constantly beating to pump blood throughout your body?
26.3k views
5 votes
Why does your heart never tire of constantly beating to pump blood throughout your body?

User Misticos
by
7.9k points

2 Answers

3 votes
Because it's a muscle
User Vlad Shevchenko
by
8.0k points
4 votes
I think it consist of cardiac muscle tissues, which means it moves involuntarily. 
User Swathy Valluri
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8.0k points
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