Biology, asked by MitaSinha2907, 1 year ago

Write the effects of sympathetic and parasympathetic stimulation on heart contractions

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Answered by pintoo8
1
The heart is innervated by vagal and sympathetic fibers.Sympathetic stimulation of the heart increases heart rate (positive chronotropy), inotropy and conduction velocity (positive dromotropy), whereas parasympathetic stimulation of the heart has opposite effects.
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