QABiology › The heart is enclosed in a double-walled sac called the:
Q

The heart is enclosed in a double-walled sac called the:

A

The pericardium is a double-walled sac in which the heart is enclosed. it surrounds the heart, therefore, acting as a form of protection to the heart. It also helps in lubricating the heart and keeping it in place within the chest. The pericardium is made up of an inner serous layer and an outer fibrous layer. The serous layer consists of an inner visceral layer and an outer parietal layer of which epithelial cells comprise.

3 months ago
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