An Atlas of Ixodid Tick UltrastructureAlexander S. Raikhel, Harry Hoogstraal |
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Page 175
... synganglion ( Ioffe , 1963 ; Tsvileneva , 1964 ; Obenchain , 1974a ) . The synganglion lies anteriorly at the level of coxae II . In adult Dermacentor variabilis , the synganglion is 500 um long , 400 um wide , and 250 um thick ...
... synganglion ( Ioffe , 1963 ; Tsvileneva , 1964 ; Obenchain , 1974a ) . The synganglion lies anteriorly at the level of coxae II . In adult Dermacentor variabilis , the synganglion is 500 um long , 400 um wide , and 250 um thick ...
Page 176
... Synganglion histology The synganglion and all peripheral nerves are covered by a connective tissue sheath ( neurilemma ) . The perineurium , a relatively thin layer of glial cells , lies below the neurilemma ( Fig . 271 ) ( Coons et al ...
... Synganglion histology The synganglion and all peripheral nerves are covered by a connective tissue sheath ( neurilemma ) . The perineurium , a relatively thin layer of glial cells , lies below the neurilemma ( Fig . 271 ) ( Coons et al ...
Page 179
... synganglion rind layer . They form a glial sheath around neuron perikarya and their processes ( Figs . 273 , 275 , 276 ) . In most neurons , thin , flat glial cell processes surround the perikaryon to form a complete envelope ; in ...
... synganglion rind layer . They form a glial sheath around neuron perikarya and their processes ( Figs . 273 , 275 , 276 ) . In most neurons , thin , flat glial cell processes surround the perikaryon to form a complete envelope ; in ...
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alveoli aperture argasid arthropods asiaticum axons Balashov basal lamina blood feeding Brinton cavity cheliceral chemoreceptor cilia cisternae of RER coated vesicles contain cuticle cuticular cytoplasm cytoplasmic growth dense density Dermacentor dermal glands diameter digestive cells distal dorsal droplets duct electron microscope electron-dense elongate epicuticle epidermal cells epithelial cells excretory extensible cuticle fat body folds formation glial cell glycogen Golgi complexes granular granulocytes Haller's organ hemocytes hemolymph heterophagosomes Hyalomma insects invaginations ixodid ticks Ixodoidea layer lipid located lumen lysosomes Malpighian tubule mechanoreceptor microtubules microvilli midgut midgut cells mitochondria molting morphological nephrocyte nerve neurons neurosecretory nucleus numerous nymphal Obenchain oocyte palpal organ photoreceptor cells plasma membrane pore canals procuticle protein Raikhel rectal sac residual bodies ribosomes scutum secretory cells secretory granules segment sensilla setae setal sheath spermatocyte stage structure surrounded synganglion tissue Tsvileneva tubular type I digestive ultrastructure unfed female unfed nymph unfed ticks vacuoles ventral vitellogenesis