Electrocardiogram (ECG) of a normal heart rate,computer artwork. An ECG measures the electrical activity of the heart. Contractions are caused by electrical signals between the upper (atrial) and lower (ventrical) chambers. The tall peak indicates the pumping action of the ventricles | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kulyk, Mehau |
Taille de l’image : | 4000 px × 4000 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |