Question

the term that refers to the fibrous sac that surrounds and encloses the entire heart is the: a myocardium b epicardium c endocardium d pericardium

Explanation:

The myocardium is the muscular tissue of the heart. The epicardium is the outer - most layer of the heart wall. The endocardium is the inner lining of the heart chambers. The pericardium is the fibrous sac that surrounds the heart.

Answer:

D. pericardium