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Fig. 1.9 Structure of the ovary and oogenesis in Tegella unicornis .
( A ) Ovary with early vitellogenic doublet and previtellogenic doublet
(cells of intraovarian space contact the epithelial lining of the cystid
basal wall). ( B ) Ovary with late vitellogenic oocyte (intraovarian zone
fl attened; arrow indicates fl attened nucleus of basal cell). ( C ) vitellogenic
and previtellogenic doublets in ovary (note sperm head in cytoplasm
of young oocyte). ( D ) Preovulatory vitellogenic oocyte (note sperm
head in intraovarian space of ovary). Abbreviations: f follicle cells,
is intraovarian space, o oocyte, ov ovary wall cells, рd previtellogenic doublet, poc previtellogenic oocyte, s sperm head, sf squamous
follicle cells, voc vitellogenic oocyte. Scale bars: A , 10 μm; B – D ,
20 μm
Figures
Fig. 1.9 Structure of the ovary and oogenesis in Tegella unicornis .
( A ) Ovary with early vitellogenic doublet and previtellogenic doublet
(cells of intraovarian space contact the epithelial lining of the cystid
basal wall). ( B ) Ovary with late vitellogenic oocyte (intraovarian zone
fl attened; arrow indicates fl attened nucleus of basal cell). ( C ) vitellogenic
and previtellogenic doublets in ovary (note sperm head in cytoplasm
of young oocyte). ( D ) Preovulatory vitellogenic oocyte (note sperm
head in intraovarian space of ovary). Abbreviations: f follicle cells,
is intraovarian space, o oocyte, ov ovary wall cells, рd previtellogenic doublet, poc previtellogenic oocyte, s sperm head, sf squamous
follicle cells, voc vitellogenic oocyte. Scale bars: A , 10 μm; B – D ,
20 μm
Figures