noun Anatomy. a series of interconnected spaces between tissues and organs through which blood flows freely, unconfined by veins or arteries, occurring in several invertebrate groups, especially mollusks and arthropods.

What is a hemocoel in arthropods?

: a body cavity (as in arthropods or some mollusks) that contains blood or hemolymph and functions as part of the circulatory system.

What is the significance of the hemocoel?

When filled with fluid, the hemocoel expands against the body wall and fibrous tissues, providing a rigid framework and stretching opposing muscles. This same fluid pressure, generated by contraction of other muscles, allows the foot to extend from the shell and penetrate…