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Neuromuscular transmission in arterioles of guinea‐pig submucosa.
Author(s) -
Hirst G D
Publication year - 1977
Publication title -
the journal of physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.802
H-Index - 240
eISSN - 1469-7793
pISSN - 0022-3751
DOI - 10.1113/jphysiol.1977.sp012093
Subject(s) - excitatory postsynaptic potential , stimulation , neuromuscular transmission , guinea pig , neuromuscular junction , submucosa , anatomy , electrophysiology , chemistry , neuroscience , biology , medicine , endocrinology , inhibitory postsynaptic potential
1. Intracellular recordings were made from arterioles lying in the submucosa of guinea‐pig small intestine. 2. Low frequency perivascular nerve stimulation evoked subthreshold excitatory junction potentials which facilitated. 3. Higher frequency stimulation caused summation of excitatory junction potentials and the initiation of muscle action potentials. 4. Arteriolar constriction was only observed following the initiation of a muscle action potential.