The Thick, Muscular Middle Layer of the Heart Wall That

question 14

Multiple Choice

The thick, muscular middle layer of the heart wall that contains the atrial and ventricular muscle fibers necessary for contraction is the _____.

• A) epicardium
• B) pericardium
• C) myocardium
• D) endocardium

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Definitions:

Left Leg

Refers to the lower limb on the left side of the body, from hip to foot.

Ventricular Fibrillation

A life-threatening heart rhythm that results in a rapid, erratic heartbeat that prevents the heart from pumping blood effectively.

Cardiac Disease

A broad term for diseases affecting the heart, such as coronary artery disease, heart rhythm problems, and heart defects.

Lung Disease

A broad category of disorders, illnesses, and conditions affecting the lungs and respiratory function, such as asthma, pneumonia, and COPD.