ZOOLOGY: STUDY GUIDE - Ye. O. Nevedomska - 2013

LECTURE 9. PHYLUM NEMATHELMINTHES, OR PSEUDOCOELOMATE WORMS

Outline

1. General characteristics of the phylum Nemathelminthes.

2. Progressive features of the phylum Nemathelminthes.

3. Class Nematoda, or Roundworms (Nematoda).

4. Role of roundworms in nature and human life.

Key Concepts: hypodermis, primary body cavity (schizocoel), cephalic capsule, tactile Organs (tangoreceptors), olfactory pits (amphids), cuticle, anaerobe, Sexual Dimorphism, ascariasis, enterobiasis, trichuriasis, helminthology.



Last update: 14/08/2026

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