Exo-Endocytosis in the Neurohypophysis as Revealed by Freeze-Fracturing
Evidence has accumulated to indicate that the release of the neurohypophysial hormones occurs by exocytosis (emiocytosis, and reverse pinocytosis, are synonyms). During this process, the secretory granule-limiting membrane fuses with the plasma membrane, and an opening is formed which allows passage of the soluble content of the neurosecretory granules to the extracellular environment.
KeywordsHormone Release Fracture Face Posterior Pituitary Gland Shadow Casting Neurosecretory Granule
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