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Muscle tissues in order to pump the blood, and fibrous tissue that are made up of the valves.
your heart tissue is made of cardiovascilar tissue. i think that's how you spell it, your heart is the only musule with that tissue. but whats hard for me to believe is you didnt learn that in eitheer 3rd, 4th, or 5th grade.

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12y ago

What else can I help you with?