ID 288297331 © Designua | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
heart innervation autonomic nervous system sympathetic parasympathetic human brain vagus nerve cardiac rate control vector plexus receptor blood pressure myocardium baroreceptor cardiovascular regulation fightorflight response restanddigest arrhythmias dysfunction disease innervation system parasympathetic nerve control