describe heart beat
Answers
Answered by
2
Heart beat is the number of beats that have been pumped for a time period (i.e)
one minute
one minute
Answered by
0
hi frnd
The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. the elctrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles the SA node sets the rate and rhythm of your heartbeat.
hope it helps you
pls mark as brainiest.
The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. the elctrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles the SA node sets the rate and rhythm of your heartbeat.
hope it helps you
pls mark as brainiest.
Similar questions