The hearts electrical activity starts with the sino-atrial node in the right atrium, which sends its impulse to the rest of the heart causing contraction. However it the SA node fails there are still two backups, the AV Junction, and the purkinje fibers, however they are not able to send out impulses as fast and the contractions aren't as efficient.
sinoatrial node
Sinotrial node
SA node
SA Node (Sinoatrial) responsible for initiating the heart beat pacemaker
tongue
Chloroplasts
robert w.furnus
platlets
How does an insects heart beat How does an insects heart beat How does an insects heart beat How does an insects heart beat
osteoblast
You will not be able to feel a heart beat, but a heart beat can be detected. Usually at around 5 weeks a heart beat can be heard.
yes there are ppl with no heart beat and their dead
i think it does have a slow heart beat!
no your heart beat is the same
Valves have nothing to do with heart beat The pacemaker of the heart controls the heart beat