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Rudik [331]
4 years ago
11

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

Health
2 answers:
vivado [14]4 years ago
4 0
It pumps because it is involuntary. it is cardiac muscle which means it is uncontrolled.
Rashid [163]4 years ago
3 0
<span>D. It consists of cardiac muscle tissues, which means it moves involuntarily.</span>
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