The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is…

The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the

  • A.
    veins
  • B.
    right auricle
  • C.
    arteries
  • D.
    left ventricle
Correct Answer: Option D
Explanation

The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.

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