Microscopic Anatomy of Invertebrates: Annelida

acrosome amebocytes Anat Annélide Polychète annelids apical axons basal lamina Biol blood vessels body wall cells Fig chaetes cilia ciliary cilium cocoon coelomic coelomocytes contain cuticle cytoplasm dense Dhainaut Dhainaut-Courtois diameter distal dorsal duct Eckelbarger Eisenia electron electron-dense Enchytraeus endoplasmic epidermis epithelium fibers filaments filtration weir follicle Franzén function ganglion Glycera glycogen Golgi complex granular granules hemocoelomic intestine invertebrates Jamieson larva layer leeches longitudinal muscle lumbricids Lumbricus terrestris lumen membrane metanephridia microtubules microvilli mitochondria morphology muscle cells nephridia nephridioduct nephridium Nephtys Nereis diversicolor nerve cord neurons neuropil nucleus numerous oligochaetes oocyte Ophryotrocha organ Owenia fusiformis pair peritoneal cells pharynx plasmalemma podocytes poly polychaetes posterior prostomium protonephridia region reticulum Scale bar secretory segments sensory cells setae Smith and Ruppert species sperm structure supporting cells terminal cell tion tissue tube Tubifex Tubifex tubifex tubificids Ultrastructure vacuoles vascular ventral vesicles Westheide Zool