Contents
- 1 What is the tissue located beneath the pericardium?
- 2 What is the pericardium what are its parts?
- 3 What is the inner layer of the pericardium?
- 4 What are the three layers of the heart?
- 5 What virus causes pericarditis?
- 6 Which is the outer layer of the pericardium?
- 7 How does the parietal pericardium protect the heart?
What is the tissue located beneath the pericardium?
epicardium
The epicardium is a thin layer of elastic connective tissue and fat that serves as an additional layer of protection from trauma or friction for the heart under the pericardium. This layer contains the coronary blood vessels, which oxygenate the tissues of the heart with a blood supply from the coronary arteries.
What is the pericardium what are its parts?
The pericardium consists of two layers: the fibrous and the serous. The fibrous pericardium is a conical-shaped sac. Its apex is fused with the roots of the great vessels at the base of the heart. Its broad base overlies the central fibrous area of the diaphragm with which it is fused.
What is the inner layer of the pericardium?
The inner surface of the fibrous pericardium is lined by the outer (parietal) layer of serous pericardium. 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.
What does pericardial tissue mean?
Pericardium: The conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium’s outer coat (the parietal pericardium) is tough and thickened, loosely cloaks the heart, and is attached to the central part of the diaphragm and the back of the breastbone.
How many layers of tissue does the heart have?
three layers
The wall of the heart separates into the following layers: epicardium, myocardium, and endocardium. These three layers of the heart are embryologically equivalent to the three layers of blood vessels: tunica adventitia, tunica media, and tunica intima, respectively.
What are the three layers of the heart?
The walls of the heart are composed of three layers:
- Epicardium – the outer layer.
- Myocardium – the middle, muscular layer.
- Endocardium – the inner layer.
What virus causes pericarditis?
Viral causes include coxsackievirus, herpesvirus, mumps virus, and HIV among others. Pneumococcus or tuberculous pericarditis are the most common bacterial forms. Anaerobic bacteria can also be a rare cause.
Which is the outer layer of the pericardium?
The outer layer of the pericardium, called the parietal pericardium, consists of an outer layer of strong, thick connective tissue (called the fibrous pericardium) and an inner serous layer (the serous pericardium ).
Is the visceral pericardium part of the heart wall?
It is continuous with fibrous pericardium and provides an additional layer of insulation for the heart. Visceral pericardiumis both the inner layer of the pericardium and the outer layer of the heart wall. Also known as the epicardium, this layer protects the inner heart layers and also assists in the production of pericardial fluid.
Is the fibrous pericardium attached to the sternum?
Fibrous pericardium is the outer fibrous sac that covers the heart. It provides an outer protective layer that is attached to the sternum by sternopericardial ligaments.
How does the parietal pericardium protect the heart?
It also protects the heart from an infection that could potentially spread from nearby organs such as the lungs. Parietal pericardium is the layer between the fibrous pericardium and visceral pericardium. It is continuous with fibrous pericardium and provides an additional layer of insulation for the heart.