Layers of the Heart Explained: Pericardium, Myocardium & More

Why doesn't your heart get damaged when it beats around 100,000 times a day? The answer is its layers. In this video I break down the layers of the heart, how each one is built, and how they protect the heart and keep it pumping. We cover: The pericardium (fibrous and serous) and the fluid that reduces friction The three layers of the heart wall: epicardium, myocardium and endocardium What each layer does and why it matters Easy ways to remember the order for your exam This lesson is useful if you're studying AP Biology, AP Anatomy & Physiology, college intro biology, nursing prerequisites, or A Level Biology. If this helped, hit subscribe to Bio Viz Academy. I post clear, visual biology lessons so you can actually see how things work instead of just memorizing them. Have a question about the heart or a topic you want covered next? Leave it in the comments and I'll reply. I'm Dildar Hussain, a biology instructor, and I make these videos to help students understand biology visually. #LayersOfTheHeart #circulatorysystem #APBiology #HeartAnatomy