What is Circumenteric ring?
circumenteric ring: (NEMATA) A commissural nerve ring that encircles the esophagus (pharynx). What does a nerve ring do? n. In echinoderms, a bundle of nerve cells encircling the mouth and connecting to radial nerves. It functions to relay the sensory and motor signals throughout the body. Where is nerve ring found? Fibers of the nerve…