Majalah Ilmu Faal Indonesia
ISSN 0215-1995
Vol. 6 / No. 1 / Published : 2006-10
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Original Article :
Roles of autonomic nerves in heart rate regulation
Author :
- Muhammad Ridwan*1
- Muhammad Ridwan*2
Abstract :
In normal healthy individuals, heart rate differs in various states and is influenced by many variables. At rest, heart rate is affected by neurological, humoral and metabolic factors. This article, however, reviews only the role of autonomic nervous system in modulating heart rate. Parasympathetic nerve, through Vagus nerve slows heart rate, whereas sympathetic nerve accelerates heart rate. Some reflexes mediated by baroreflex, chemoreflex and cardiopulmonary reflex also modulate heart rate. In addition, heart rate accelerates during inspiration and decelerates during expiration.
Keyword :
autonomic, heart rate, regulation ,
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