📖 what
What is the pericardium?
Human BodyAnatomy
Quick Answer
The pericardium is the protective sac surrounding the heart. It helps anchor the heart and reduce friction as it beats.
The Full Story
The pericardium is a two-layered membrane around the heart. Between its layers is a small amount of lubricating fluid that allows the heart to move smoothly with each beat. It helps stabilize the heart’s position in the chest and limits overexpansion when blood volume rises. Medical problems such as pericarditis involve inflammation of this sac, which can cause chest pain and other symptoms. Because the heart beats about 100,000 times a day on average, low-friction protection matters a great deal.
Key Facts
1.Two-layered sac
2.Contains lubricating fluid
3.Heart beats about 100,000 times per day
YouTube Angle
Suggested video title for this topic:
"The heart’s protective wrapping explained"