AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The heart is enclosed in a double layered membrane called
A
Pericardium membrane
B
Pericardial membrane
C
Pleural membrane
D
None of the above
Explanation: 

Detailed explanation-1: -Pericardium is a double layered protective covering of the heart. Outer layer is the parietal pericardium and the inner layer is visceral pericardium enclosing a pericardial cavity filled with pericardial fluid .

Detailed explanation-2: -Heart is covered by a double layered membrane called the pericardial membrane. It secretes pericardial fluid. It lubricates the heart to prevent the friction with tissues around the heart.

Detailed explanation-3: -A human heart is enclosed in a double-walled sac called pericardium.

There is 1 question to complete.