What are the layers of the heart, from the inside to the outside?
1 Answer
Endocardium - Innermost Epithelial Layer
Myocardium - Muscular Middle Layer
Pericardium - Visceral (Epicardium) Layer
Pericardium - Pericardial Cavity
Pericardium - Parietal (Epicardium) Layer
Pericardium - Fibrous Pericardial Layer
Explanation:
Picture from www.healthhype.com
Endocardium - Innermost Epithelial Layer - in contact with blood in the chambers of the heart.
Myocardium - Muscular Middle Layer - contractile tissue thicker in the ventricles and thinner in the atria
Pericardium - Visceral (Epicardium) Layer - encapsulates the the myocardium
Pericardium - Pericardial Cavity - filled with pericardial fluid to reduce friction during heart movement
Pericardium - Parietal (Epicardium) Layer - encloses the pericardial cavity
Pericardium - Fibrous Pericardial Layer - dense fibrous sac surrounding the heart.