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The primary structure responsible for pumping blood for circulation through the ...


Question

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

Options

A) veins

B) right auricle

C) arteries

D) left ventricle


The correct answer is D.

Explanation:

The mammalian heart is divided into four chambers: The left and right Auricles and The left and right Ventricles. The walls of the Ventricles are normally thicker than those of the Auricles. Again, the wall of the LEFT VENTRICLE is Thicker and more Muscular than that of the The right ventricle. This is because it is through the LEFT VENTRICLE that BLOOD IS PUMPED or forced out of the heart; and then through the arteries (and veins); to all parts of the body.

Adapted from my personal favourite Biology Textbook, Essential Biology by MC Michael.

Explanation provided by Udoh Deborah


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Discussion (2)

  • The answer is arteries

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  • Udoh Deborah

    The mammalian heart is divided into four chambers: The left and right Auricles and The left and right Ventricles. The walls of the Ventricles are normally thicker than those of the Auricles. Again, the wall of the LEFT VENTRICLE is Thicker and more Muscular than that of the The right ventricle. This is because it is through the LEFT VENTRICLE that BLOOD IS PUMPED or forced out of the heart; and then through the arteries (and veins); to all parts of the body.

    Adapted from my personal favourite Biology Textbook, Essential Biology by MC Michael.