The body wall is composed of epidermis, musculature and peritoneum.
Epidermis-The outermost layer or epidermis consists of a single layer of mostly tall,slender,columnar and ciliated cells.Gobletgland cells are flask-shaped with fine granules. Reticulate gland cells have vacuolated cytoplasm.Mulberry or granular gland cells contain coarse granules and also secrates amylase.The gland cells are more abundant in tha collar region.Dermis are absent.Besides, neurosensory cells,which stain darker,are present in the epidermis of proboscis and anterior part of the collar.
Musculature-The muscules are smooth,weak and mostly longitudinal.In the trunk region, only longitudinal muscle fibres are present.
Peritoneum-THe coelom is lined by the parietal coelomic epithelium or peritoneum which covers the inner surface of the body wall musculature.
Epidermis-The outermost layer or epidermis consists of a single layer of mostly tall,slender,columnar and ciliated cells.Gobletgland cells are flask-shaped with fine granules. Reticulate gland cells have vacuolated cytoplasm.Mulberry or granular gland cells contain coarse granules and also secrates amylase.The gland cells are more abundant in tha collar region.Dermis are absent.Besides, neurosensory cells,which stain darker,are present in the epidermis of proboscis and anterior part of the collar.
Musculature-The muscules are smooth,weak and mostly longitudinal.In the trunk region, only longitudinal muscle fibres are present.
Peritoneum-THe coelom is lined by the parietal coelomic epithelium or peritoneum which covers the inner surface of the body wall musculature.
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