Layers of the Heart

The video tutorial explains the four layers of the heart: pericardium, epicardium, myocardium, and endocardium. It covers their structure, composition, and functions. The pericardium is a protective sac, the epicardium is the outer layer, the myocardium is the thick muscle layer, and the endocardium is the smooth inner layer. The video concludes with a quiz to test understanding.

Which layer of the heart is described as a thin fluid-filled sac?

• Epicardium

• Pericardium

• Myocardium

• Endocardium

What is the inner part of the pericardium that envelops the heart?

• Parietal Pericardium

• Myocardium

• Visceral Pericardium

• Endocardium

Which layer is known as the thickest layer of the heart wall?

• Epicardium

• Pericardium

• Myocardium

• Endocardium

What is the innermost layer of the heart called?

• Epicardium

• Pericardium

• Myocardium

• Endocardium

Which layer of the heart is made up of heart muscles?

• Endocardium

• Myocardium

• Pericardium

• Epicardium

Which layer of the heart is responsible for lubrication?

• Endocardium

• Myocardium

• Pericardium

• Epicardium

Which layer of the heart is composed of endothelium?

• Epicardium

• Endocardium

• Myocardium

• Pericardium

Which layer envelops the outermost part of the heart?

• Endocardium

• Epicardium

• Pericardium

• Myocardium

What is the primary function of the myocardium?

• Protection

• Lubrication

• Pumping action

• Blood flow regulation

Which layer helps blood flow smoothly through the heart?

• Endocardium

• Myocardium

• Pericardium

• Epicardium