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Nov 2, 2023 · The pericardial cavity is a potential space between the opposing layers of the serous pericardium's parietal and visceral layer. This cavity has a fluid layer, that allows the heart to pulsate and move without friction. The fluid also serves to diminish surface tension and provide lubrication. Consequently, the pericardial cavity ensures ...
- Content Manager
- 4 min
- Anatomic Structure
- Pericardial Cavity
- Blood Supply and Innervation of The Pericardium
- Pericardial Sinuses
- Functions of The Pericardium
- References
The pericardium is a double-walled structure made up of an outer fibrous layer and an inner serous layer. The fibrous layer of the pericardium is a single connective tissue layer that is made up of collagen (type I and type III mainly) and elastin fibers; it is elastic and yet non-distensible. This layer of the pericardium is held in position crani...
A void space found among the two linings of the serous pericardium is called the pericardial cavity, which encircles the heart. Between the parietal and visceral layer is the pleural cavity, which holds the pleural fluid. About 20–30 ml in volume, this serous fluid acts as a lubricant and minimizes friction between the epicardium and parietal layer...
Blood supply to the pericardium occurs mainly through the pericardiophrenic artery, although a few minor contributions also occur via the musculophrenic artery, esophageal artery, bronchial artery, and superior phrenic artery. The coronary artery is also involved, but it supplies blood only to the visceral layer. Draining of blood from the pericard...
In medical terminology, a sinus is a passage or channel. There are two sinuses in the pericardial cavity, which include the transverse pericardial sinus and the oblique pericardial sinus. Both of these sinuses are formed through embryonic folding of the heart tube during ontogeny. The reflections or folds of the serosal layer result in the formatio...
The pericardium is known to have some specific functions, including: 1. Tethering: The pericardium holds the heart in place within the cardiac cavity. 2. Limiting:The pericardium prevents overfilling of the ventricles and consequent overexpansion of the heart. 3. Lubrication:The pericardium lubricates the moving surfaces of the heart. 4. Protective...
Nov 7, 2024 · The pericardium also plays a role in trauma, where hemopericardium (blood in the pericardial cavity) due to injury or rupture of heart structures can result in tamponade, requiring immediate intervention. Understanding the pericardium’s function and potential pathologies is critical for diagnosing and managing a range of cardiovascular conditions.
Jul 24, 2023 · The pericardium is a fibrous sac that encloses the heart and great vessels. It keeps the heart in a stable location in the mediastinum, facilitates its movements, and separates it from the lungs and other mediastinal structures. It also supports physiological cardiac function.[1][2][3]
- Ibraheem Rehman, Ali Nassereddin, Afzal Rehman
- 2023/07/24
- 2018
Your pericardium is a fluid-filled sac that surrounds your heart and the roots of the major blood vessels that extend from your heart. Conditions that affect your pericardium include pericarditis, pericardial effusion and constrictive pericarditis. Symptoms of pericardial problems include chest pain, shortness of breath and heart palpitations.
Dec 15, 2023 · Function. The pericardium has several very important roles pertaining to the heart, including: Keeps the heart positioned in the mediastinum via its attachment to the sternum, the diaphragm, and the outer layer of the great vessels (called the tunica adventitia). Prevents the heart from overfilling as the firm, fibrous layer of the pericardium ...
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Jul 25, 2023 · The pericardium develops simultaneously with the development of the heart. As the heart tubes fuse and attach to anterior and posterior walls, the left and right intraembryonic coelomic cavities approach each other. Soon after, the cavities fuse and form the pericardial cavity, enveloping the heart tube within its dorsal wall.
