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What is the difference between the Visceral Pericardium and the Epicardium?
They are the same.
What are the layers of tissue that make up the pericardium?
The pericardium is made up of two layers: the outer fibrous pericardium, which is tough and protective, and the inner serous pericardium, which is further divided into the parietal layer (lines the fibrous pericardium) and visceral layer (covers the heart). Together, these layers help protect and support the heart.
Space between the epicardium and the parietal pericardium?
pericardial cavity
The outer covering of the heart?
The heart is encased in two protective layers. The outer layer -- the pericardium -- covers the heart. It folds in on itself at the aorta forming the epicardium of the heart. Between these layers is a small amount of fluid (10-50 ml) that affords the layers a non-stick surface.
What is the difference between serous pericardium and fibrous pericardium?
The serous pericardium is a thin, double-layered membrane that covers the heart and consists of the parietal pericardium (outer layer) and visceral pericardium or epicardium (inner layer). The fibrous pericardium is a tough, fibrous layer that surrounds the serous pericardium and helps protect the heart and anchor it within the chest cavity.
Is visceral pericardium deep to the parietal pericardium?
Yes, the visceral pericardium adheres to the outside surface of the myocardium (heart muscle), while the parietal pericardium lies outside of the visceral pericardium. There is a small amount of lubricating fluid between these two membranes in the potential space known as the pericardial space. If an abnormal amount of fluid of any kind builds up in this space, it is called a pericardial effusion.
What is the space between the epicardium and the parietal pericardium?
The space between the epicardium and the parietal pericardium is called the pericardial cavity. This cavity contains a small amount of pericardial fluid that acts as a lubricant to reduce friction between the membranes during heart contractions.
What are the layers of the heart wall from superficial to deep?
The heart consists of three tissue layers: endocardium, myocardium, and pericardium. The endocardium, the innermost layer, lines the hearts chambers and is bathed in blood. The myocardium is the thick middle layer of the heart. Its cells are unique in that they physically resemble skeletal muscle but have electrical properties similar to smooth muscle. These cells also contain specialized structures that help to rapidly conduct electrical impulses from one muscle cell to another, enabling the heart to contract. The pericardium is a protective sac surrounding the heart, which consists of two parts: the inner serous pericardium and the outer fibrous pericardium. The serous pericardium has two layers--the visceral and the parietal. The visceral pericardium, also called the epicardium, is the inner layer, in contact with the heart muscle itself. The parietal pericardium is the outer, fibrous layer. In the pericardial cavity, between these two layers, is about 25 milliliters of pericardial fluid, a lubricant that reduces friction as the heart beats and changes position. The fibrous pericardium encases the serous pericardium. It is made of dense connective tissue and is attached to both the diaphragm and the base of the great vessels.
What region is the pericardial cavity?
The pericardial cavity is located in the thoracic region of the body, specifically between the two layers of the pericardium that surround the heart. It is situated in the mediastinum, which is the central compartment of the thoracic cavity.
What is the fluid sac that surrounds the heart?
Yes, it is.
Which term refers to the membrane between the outermost and innermost part of the heart?
The tissue of the heart is composed of three major layers: The outer most is the Epicardium. "Epi" refers to "outside" The inner most layer is the Endocardium. "Endo" refering to "inside" The layer in between is called the Myocardium. It is the thickest layer and is composed of cardiac muscle. Thus its name, as "myo" is a prefix meaning "muscle".
Where is the myocardium located in the heart?
The myocardium is located between the endocardium and the visceral layer of the serous membrane (epicardium) of the heart.
