Human heart is enclosed in a double walled sac called as
A
Peritome
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B
Pericardium
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C
Pericardial sinus
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D
Perineural sinus
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Solution
The correct option is B Pericardium The heart is enclosed by a sac-like covering called as pericardium. It has 2 layers. The outer layer is more fibrous and is called as a parietal layer.
The inner layer is smooth and is called as a visceral layer. Pericardium protects the heart from mechanical injury and helps in the movement of the heart walls.