negative regulation of heart rate by acetylcholine
The process in which acetylcholine released from vagus nerve endings binds to muscarinic receptors on the pacemaker cells and decreases the rate of heart muscle contraction.
GO:0003062
regulation of heart rate by chemical signal
is_a
GO:0010459
negative regulation of heart rate
is_a
GO:0003068
regulation of systemic arterial blood pressure by acetylcholine
part_of
negative regulation of heart contraction rate by acetylcholine
related