cercal organ
anatomy
Quick Summary
The term "cercal organ" refers to a sensory appendage found at the posterior end of certain arthropods, such as cockroaches and crickets. These organs typically consist of a dense brush of fine hairs that can detect sound vibrations across a range of frequencies.12
It is important to distinguish this from "cercaria," which is a larval stage of trematode worms. These cercariae develop within a mollusk host and are typically tadpole-shaped, exiting the snail to find a definitive host.34
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