Clitellum
from class: General Biology I Definition The clitellum is a thickened, glandular section of the body wall found in certain annelids, such as earthworms and leeches. It plays a crucial role in reproduction by secreting mucus to form a cocoon for eggs.
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Predict what's on your test 5 Must Know Facts For Your Next Test The clitellum becomes more prominent during the reproductive season. It is usually located near the anterior end of the worm. The clitellum produces a mucous sheath used for copulation and egg protection. After mating, it slides off the worm's body, forming an egg capsule that incubates the embryos. Not all annelids possess a clitellum; it is specific to members of the subclass Clitellata. Review Questions What is the primary function of the clitellum in annelids? Where on an earthworm's body is the clitellum typically found? How does the clitellum contribute to the reproductive process in earthworms? "Clitellum" also found in:
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