Which structure is a double-layered membrane that secretes a slippery,watery fluid around the heart?
A)pericardium
B)mediastinum
C)endocardium
D)myocardium

Question

Quizplus · Accepted Answer

A)Correct! The pericardium is a double-layered membrane around the heart.
B)The mediastinum is a central area in the thoracic cavity that holds the heart.
C)The endocardium is the inner lining of the heart.
D)The myocardium is the muscular layer of the heart.

Which Structure Is a Double-Layered Membrane That Secretes a Slippery,watery