Rate, heart means: Heart rate: The number of beats per minute. The
Normal adult resting heart rate is 60 beats per minute.
The heartbeats of young children are faster. Heart rate, or the speed at which your heart beats per minute is
The speed of electric signals coming from the pacemaker, or heartbeat, controls the SA node.
The right atrium is located above the heart’s upper chamber. These electrical signals are sent from the
The SA node can travel through the atria to cause these upper heart chambers and their contraction,
Delivering blood to the ventricles, which are located in the lower chambers of the heart. Electrical signals
Then, pass the AV node through to the ventricles. The electrical signals reach the
Ventricles are responsible for contracting these chambers, which pump blood around the body.
The pulse is generated. The speed at which electrical signals originate from the SA are generated during rest is the SA’s.
The heart beats slower when the node is too slow. The heart rate increases during exercise and excitement.
The heartbeat increases and signals from the SA Node increase.
(in Medical Dictionary)