Hoe wordt een beat gegenereerd door het hart?

Vraag

De hartslag in uw hart wordt gegenereerd door een kleine groep zeer gespecialiseerde spiercellen in de rechterboezem van het hart (een van de vier hartkamers). These group cells are able to contract spontaneously and generate electrical activity that spread through the walls of the heart making the heart contract. These group of cells, called SA node (sinoatrial node), are responsible for setting the rhythm of your heartbeat.

An average adult heart is a little bigger than a clenched fist, weighs about 11 ounces (roughly the same weight as one large turnip) and despite what we see on greeting cards, looks more like an upside-down pear than a Valentine. According to the American Heart Association the heart beats an average of 100,000 keer per dag — anywhere from 60 naar 100 beats a minutewhich adds up to more than 2.5 billion beats by the time we turn 70-years-old.

Credit:https://health.howstuffworks.com/human-body/systems/circulatory/what-makes-your-heart-beat.htm

0
Ephraim Iyodo 3 jaar 0 antwoorden 3189 keer bekeken 0

Laat een antwoord achter

Briljant Veilig & Studentgericht Leerplatform 2021