Documents THE HEART. Anatomy In pericardial sac –w/in mediastinum Four muscular chambers (Fig.22-1) –Walls...

Slide 1 THE HEART Slide 2 Anatomy In pericardial sac –w/in mediastinum Four muscular chambers (Fig.22-1) –Walls (Fig.22-2) Myocardium -- thickest layer –Muscle fibers…