<prompt> TRUE regarding human heartConduction of impulse from endocardium to inwardsDuring exercise duration of systole is reduced more than diastoleHR increases with parasympathetic denervationVagal stimulation decreases force of contraction  <response>: In resting state, the heart is under vagal control. But when there is vagal denervation, the sympathetic activity is unhindered and the heart rate increases.Conduction is from endocardium to epicardium.During exercise, the duration of diastole is more decreased than systole.Vagal stimulation does not decrease the force of contraction. 