endosternite
anatomy
Quick Summary
An endosternite is a component of an arthropod's endoskeleton. It can refer to specific parts of a crustacean's apodeme, which is derived from the membrane between sternal plates. It also describes ventral segmental parts of an insect's endoskeleton. In some arthropods, like the horseshoe crab, a substantial endosternite formed by connective-tissue fibers is located below the gut and above the nerve cord, serving as an attachment point for muscles.12
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