Annulate lamellae, though few, were observed in the epithelial cells of the rete ovarii of 1-month-old rabbits, but not of
other-aged juvenile rabbits examined. There were little differences in the fine structural details between the rete ovarii
with annulate lamellae and those without annulate lamellae. Most rete ovarii cells were undergoing atrophy. This finding suggests
that annulate lamellae may be quite ordinal, transitory organelles common to virtually all cell types.
Key words Annulate lamellae - Ovary, rete ovarii - Rabbit - Electron microscopy