Tissue layers making up the heart wall include which of the ...

[Tazate]

Tissue layers making up the heart wall include which of the following? 1. Endocardium 2. Epicardium 3. Myocardium
 
  a. 1, 2, and 3
  b. 2 and 3 only
  c. 2 only
  d. 1 and 3 only

Question 2

What is the loose membranous sac that encloses the heart?
 
  a. Endocardium
  b. Mesothelium
  c. Myocardium
  d. Pericardium

[matt]

Answer to Question 1

ANS: A
The heart wall consists of three layers: (1) the outer epicardium, (2) the middle myocardium, and (3) the inner endocardium.

Answer to Question 2

ANS: D
The heart resides within a loose, membranous sac called the parietal pericardium.

[Tazate]

Thanks for the timely response, appreciate it

[milbourne11]

Great answer, keep it coming