The outermost layer of the wall of the heart is the ____.
a. serous pericardium
b. epicardium
c. endocardium
d. myocardium
Question 2
The outermost layer of the pericardial sac is the ____.
a. visceral pericardium
b. serous pericardium
c. myocardium
d. fibrous pericardium