Question

Choose the correct answer from the alternatives given.
The mammalian heart remains surrounded by a fibrous sac called:

• A. pericardium
• B. peritoneum
• C. myocardium
• D. pleural membrane

Answer 1

The correct option is A pericardium

The pericardium is the fluid-filled sac that surrounds the heart and the proximal ends of the aorta, vena cava, and the pulmonary artery. The pericardium has several functions. It keeps the heart contained in the chest cavity. The pericardium also prevents the heart from over-expanding when blood volume increases.

So, the correct option is 'Pericardium'.