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Transmitter release from sympathetic postganglionic nerve terminals innervating the guinea - pig and mouse vas deferens and the rat tail artery has been studied in vitro by focal extracellular recording with particular emphasis on the time course of transmitter action underlying the intracellular potential changes .
 sympathetic postganglionic nerve terminals, vas deferens, tail artery, extracellular, intracellular
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 sympathetic postganglionic nerve terminals, vas deferens, tail artery, extracellular, intracellular