Journal article

AN ELECTROPHYSIOLOGICAL STUDY OF THE PROJECTIONS OF MOTOR NEURONS THAT MEDIATE NON-CHOLINERGIC EXCITATION IN THE CIRCULAR MUSCLE OF THE GUINEA-PIG SMALL-INTESTINE

TK SMITH, JB FURNESS, M COSTA, JC BORNSTEIN

JOURNAL OF THE AUTONOMIC NERVOUS SYSTEM | ELSEVIER SCIENCE BV | Published : 1988

Abstract

The projections of neurones that produce the fast non-cholinergic excitatory junction potentials (e.j.p.s) in the circular muscle were analysed in the isolated ileum of the guinea-pig. Standard intracellular microelectrode techniques were used to record the amplitudes of such e.j.p.s in response to short trains of stimuli from transmural electrodes. Projections of the neurones around the circumference of the intestine were determined by plotting the change in e.j.p. amplitude with distance from longitudinally placed electrodes. Projections in the oral and anal directions were examined by recording at varying distances from transversely placed electrodes, and also by recording responses elici..

View full abstract