What Structure Forms the First Layer of the Heart

question 60

Multiple Choice

What structure forms the first layer of the heart?

• A) Parietal pericardium
• B) Epicardium
• C) Myocardium
• D) Endocardium

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Definitions:

Antigen

Foreign substance, usually a protein or a polysaccharide, that stimulates the immune system to react, such as to produce antibodies.

T Cells

A type of white blood cell that plays a critical role in the immune system, especially in the adaptive immune response, by identifying and killing infected cells or orchestrating the immune response.

Cell-mediated Immunity

A component of the immune system that involves the activation of certain immune cells to fight off pathogens, distinct from antibody-mediated immunity.