Neuromuscular Contacts in Intracranial Arteries of the Cat

Science  16 Jan 1970:
Vol. 167, Issue 3916, pp. 301-302
DOI: 10.1126/science.167.3916.301


Nerves of intracranital arteries of the cat were restricted to adventitia, with neuromuscular contacts observed only at the border of adventitia and media. Axons of such neuromuscular contacts possessed at least two different populations of synaptic vesicles. One axonal type contained manzy small (500 angstroms in diameter) granular vesicles and occasional agranular vesicles. The other contained only agranular vesicles.