🌟 The Human Heart: Anatomy Inside and Out 🌟 The heart’s anatomy is a marvel of biological engineering. Externally, it is protected by the pericardium and supplied with blood by the coronary arteries. Internally, it features four chambers, valves, and a powerful muscular wall that work in unison to pump blood throughout the body. Understanding these structures is crucial for maintaining cardiovascular health. Join the conversation and share your insights or questions about heart anatomy! #Cardi