div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails5jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails6jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails7jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=8Page 8button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails8jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imageimg data-url=the-heart-muscle-this-electrical-current-makes-the-heart-beat-and-can-be-deliveredhtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: · the heart muscle This electrical current makes the heart beat and can be delivered as needed to keep your heart beating at a healthy rate the heart Sinoatrial SA Node Atrioventricular loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220421135e8ece5ff2e0496c0650a982html5thumbnails9jpg width=140 height=200 divdiv
