What is the pericardial cavity?
The inner (visceral) layer of the serous pericardium lines the outer surface of the heart itself. Between the two layers of the serous pericardium is the pericardial cavity, which contains pericardial fluid. It is this fluid that provides lubrication between the two layers, and allows the heart to expand and contract.
What is the pericardial cavity and its function?
The two layers of serous pericardium: visceral and parietal are separated by the pericardial cavity, which contains 20 to 60 mL of the plasma ultrafiltrate. The pericardium acts as mechanical protection for the heart and big vessels, and a lubrication to reduce friction between the heart and the surrounding structures.
What is the anatomy of the pericardium?
It has two layers, an outer layer made of strong connective tissue (fibrous pericardium), and an inner layer made of serous membrane (serous pericardium). It encloses the pericardial cavity, which contains pericardial fluid, and defines the middle mediastinum….
Is there blood in the pericardial cavity?
The pericardium has two layers. The space between the layers normally contains a thin layer of fluid. But if the pericardium is diseased or injured, the resulting inflammation can lead to excess fluid. Fluid can also build up around the heart without inflammation, such as from bleeding after a chest trauma.
In which cavity is the heart?
The Heart Is Located in the Center of the Thoracic Cavity. The heart is located in the middle of the thoracic cavity, oriented obliquely, with the apex of the heart pointing down and to the left, as shown in Figures 5.4. 1 and 5.4.
Is pericardium a muscle?
In scientific terms, the pericardium is a fibro-serous, fluid-filled sack that surrounds the muscular body of the heart and the roots of the great vessels (the aorta, pulmonary artery, pulmonary veins, and the superior and inferior vena cavae).
What is the function of the pericardial cavity?
The pericardial cavity is an anatomical space located between the outside surface of the heart and the pericardium of the heart, which is a tough fibrous membrane that surrounds and protects the muscle of the heart. Usually this cavity is deflated and only contains a small amount of fluid.
What is the importance of pericardial cavity?
Furthermore, what is the function of the pericardial cavity? The pericardium acts as mechanical protection for the heart and big vessels, and a lubrication to reduce friction between the heart and the surrounding structures. A very important role in all aspects of pericardial functions is played by mesothelial cells.
What does pericardial mean?
Definition of pericardial. : of, relating to, or affecting the pericardium; also : situated around the heart.
Which serous membrane lines the pericardial cavity?
The pleura is a serous membrane that lines the mediastinum, pericardium, diaphragm and thoracic wall (parietal pleural), and the lungs (visceral or pulmonary pleura) (Fig. 44-1 ). A fold of pleura encloses the caudal vena cava.