Question

Human heart is enclosed in a double walled sac called as

• A. Peritome
• B. Pericardium
• C. Pericardial sinus
• D. Perineural sinus

Answer 1

Answer: (B)

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.

So, the correct answer is option B.