4,200
edits
Basics: Difference between revisions
m
→The electric discharge of the heart
| Line 52: | Line 52: | ||
[[Image:ECG_principle_slow.gif|thumb|The electric discharge of the heart, first slowly]] | [[Image:ECG_principle_slow.gif|thumb|The electric discharge of the heart, first slowly]] | ||
[[Image:ECG_Principle_fast.gif|thumb|The electric discharge of the heart, faster now]] | [[Image:ECG_Principle_fast.gif|thumb|The electric discharge of the heart, faster now]] | ||
''' | '''The sinal node (SA node) contains pacemakercells which determine the heart frequency.''' | ||
'''First the [[heart|atria]] depolarise and contract, after that the [[heart|ventricles]]''' | '''First the [[heart|atria]] depolarise and contract, after that the [[heart|ventricles]]''' | ||
The electrical signal between the atria and the ventricles goes from the sinus node, via the atria to the AV-node (atrioventricular transition) to the His bundle and subsequently to the right and left bundle branch, which end in a dense network of Purkinje fibers. | The electrical signal between the atria and the ventricles goes from the sinus node, via the atria to the AV-node (atrioventricular transition) to the His bundle and subsequently to the right and left bundle branch, which end in a dense network of Purkinje fibers. | ||