Question

can weak electrical pulses affect the beat of the heart? and what are the consequences of arrhythmia?

Answer 1

@ArchTangent Hello, Nice To Meet You !

Abnormal heart rhythms (arrhythmias) are sequences of heartbeats that are irregular, too fast, too slow, or conducted via an abnormal electrical pathway through the heart.


Arrhythmias have consequences that range from harmless to life threatening. The seriousness of an arrhythmia may not be closely linked with the severity of the symptoms it causes. Some life-threatening arrhythmias cause no symptoms, and some otherwise inconsequential arrhythmias may cause severe symptoms. The nature and severity of the underlying heart disorder are often more important than the arrhythmia itself.

When arrhythmias impair the heart’s ability to pump blood, they can cause weakness, a reduced capacity for exercise, shortness of breath, light-headedness, dizziness, fainting (syncope—see see Fainting), or death. Fainting occurs when the heart is pumping so inefficiently that it can no longer maintain adequate blood pressure.

If such an arrhythmia persists, death may result. Arrhythmias may also aggravate the symptoms of an underlying heart disorder, including chest pain and shortness of breath. Arrhythmias that cause symptoms require prompt attention.

Hope it Helps !
Ref: http://www.medicinenet.com/heart_rhythm_disorders/article.htm

Answer 2

Yes the SA node is located within the right atrium. The SA node sends out electrical impulses and causes the right and left atrium to contract simultaneously. The impulse then reaches the AV node ... The AV node then releases an electrical impulse which causes the right and left ventricle to contact at the same time
If the electrical impluses are weak this may cause an irregularity in the heartbeat which is also known as arrhythmia ....
And Josh explained the consequences of arrhythmia perfectly

Answer 3

so am i thinking right about the consequences of electric pulses acting on the heart? like: my heart beats 1 and it pumps blood.... so the natural sequence after 1, would be that it would ready itself to pump again 2, and then pumps again 3.

but if an electric pulse acts upon after 1, would it pump again by skipping 2 and going straight to 3.. in which the consequence would be that because of skipping 2, it pumps but no new cells comes because it skipped 2 which is readying again to pump.

(i hope you guys understand my referencing)

so a comparable situation would be by smashing a hammer, you smashed it 1, then pull it up to ready 2, and then smash again 3.

by skipping 2, you just smashed it again but because without force the second smash is just weak.. very weak

Answer 4

hmmm i am actually not so knowledgeable in this area but my guess was that the electrical impulses are weaker and dont travel as fast and far enough so maybe the right and left atrium dont pump at the same time
or maybe the ventricles are pumping at a slower rate ... till it receives the impulse