Functional electron microscopy of the hypothalamic median eminence

H Kobayashi, T Matsui, S Ishii - International Review of Cytology, 1970 - Elsevier
Publisher Summary The median eminence contains distal portions of several types of axons
characterized by size and profile of the granules or vesicles therein. Four types of axons are
clearly discernible throughout the vertebrate series (1) axons containing large granules
(about 1500 A) and synaptic vesicles,(2) axons containing intermediate granules (about
1200 A) and synaptic vesicles,(3) axons containing small granules (about 1000 A) and
synaptic vesicles, and (4) axons containing synaptic vesicles exclusively. The diameters of …