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    Body Wall of Earthworm Short Notes

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    4 weeks ago

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    In this article we will discuss about the body wall of earthworm

    Body Wall of Earthworm

    • Body wall is the protective cover of the body and also helps in respiration and movements
    • Body wall is composed of four layers
      1. Cuticle: Outermost, thin, non-cellular and made up of collagen fibre
      2. Epidermis: Made up of columnar epithelium, It contain secretory glands cells and sensory cells
      3. Muscular layer: Circular and longitudinal. These help in movement
      4. Coelom: filled with alkaline whitish fluid, It consists of water, salts, proteins and granulocyte
    • Functions of body wall
      • Maintains the shape of the body
      • Protects the body from mechanical injuries
      • Body wall provides protection from harmful germs
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