Abstract: Intrinsic Cardiac Neurons. Physiological evidence indicates that afferent neurons, local circuit neurons, as well as efferent sympathetic and efferent parasympathetic neurons, are located in the mammalian intrinsic cardiac nervous system. Complex interneuronal interactions can occur between these neurons, as well as between such neurons and other intrathoracic and central nervous system neurons. A variety of neurochemicals have been proposed to be involved in such interneuronal interactions. Thus the electrophysiologic properties and synaptology of intrinsic cardiac neurons may be more varied than has been appreciated accounting, at least in part, for the variety of neuronal responses that in situ intrinsic cardiac neurons are capable of displaying. The various interactions that occur between intrinsic cardiac neurons and other intrathoracic neurons, as well as between neurons in all intrathoracic ganglia and the central nervous system, will have to be characterized in order to clarify the role of the autonomic nervous system regulating the heart throughout each cardiac cycle.
Publication Year: 1991
Publication Date: 1991-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 49
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