Endocardium
It's endocardium.
endocardium
Pericardium
Endocardium is the innermost layer of tissue that lines the chambers of the heart.
The pericardium is the membrane that is constructed of a visceral and parietal layer. The visceral layer is in direct contact with the heart, while the parietal layer lines the outer surface of the pericardial sac. This double-layered membrane protects and lubricates the heart.
The serous membrane lines certain cavities in the body. It makes up the pleura, which lines the chest cavity, and the pericardium, which covers the heart.
The membrane that protects the heart is called the pericardium. It has two layers: - the visceral pericardium (the inner layer which touches the heart) - the parietal pericardium (the outer layer which touches other organs)
The tough membrane that lines the four chambers of the heart is called the pericardium. It consists of two layers: the fibrous pericardium, which provides protection and stability, and the serous pericardium, which secretes fluid to reduce friction during heartbeats. Together, these layers help maintain the heart's position within the chest and protect it from infection and trauma.
Synovial membrane.
The blood-facing membrane of epithelial cells is known as the endothelium. It lines blood vessels and forms a barrier between the blood and surrounding tissues. The endothelium is crucial for regulating the transportation of substances in and out of the bloodstream.
The endosteum lines the medullary cavity.
Synovial membrane