Summary
A comparative study has been made of the inclusions within neurohypophysial nerve fibres of eight species of mammals.
Four classes of small inclusions have been found in each of these species, namely small and large membranous vesicles, and small and large osmiophilic membrane-bound granules. No inclusions resembling the rod-shaped inclusions in the hedgehog's neurohypophysis have been found. It seems probable that more than one type of neurosecretory fibre occurs in the infundibular process of all these species.
Large lamellated structures were found in some species, and these possibly give rise to membranous vesicles.
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Holmes, R.L. Comparative observations on inclusions in nerve fibres of the mammalian neurohypophysis. Z.Zellforsch 64, 474–492 (1964). https://doi.org/10.1007/BF01045120
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DOI: https://doi.org/10.1007/BF01045120