Title | : | Cardiovascular System 3, Heart, electrical system |
Duration | : | 23 minutes, 27 seconds |
Uploader | : | Dr. John Campbell |
Added On: | : | 04 August, 2015 |
Views | : | 723.2K times |
Likes | : | 0 |
Source | : | YouTube |
Check out my videos on all body systems, for example this series is on the nervous system, httpswww.youtube.comwatchv=The electrical activity for the contraction of the heart is initiated by thea. sinoatrial node b. atrioventircular nodec. medulla oblong