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anatomy
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The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • human circulatory system
    circulatory system
    / Hearts

    …systemic heart, many species have accessory booster hearts at critical points in the circulatory system. Cephalopods have special muscular dilations, the branchial hearts, that pump blood through the capillaries, and insects may have additional ampullar hearts at the points of attachment of many of their appendages.

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    …systemic heart, many species have accessory booster hearts at critical points in the circulatory system. Cephalopods have special muscular dilations, the branchial hearts, that pump blood through the capillaries, and insects may have additional ampullar hearts at the points of attachment of many of their appendages.

    Read More