Which Cardiac Chambers Have the Thinnest Wall and Why

question 33

Multiple Choice

Which cardiac chambers have the thinnest wall and why?

• A)The right and left atria; they are low-pressure chambers that serve as storage units and conduits for blood.
• B)The right and left atria; they are not directly involved in the preload, contractility, or afterload of the heart.
• C)The left ventricle; the mean pressure of blood coming into this ventricle is from the lung, which has a low pressure.
• D)The right ventricle; it pumps blood into the pulmonary capillaries, which have a lower pressure compared with the systemic circulation.

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Definitions:

Leukoplakia

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Leukemia

A type of cancer that affects the blood and bone marrow, characterized by the overproduction of abnormal white blood cells, leading to a weakened immune system.

Lymphoma

A type of cancer that originates in the lymphatic system, particularly affecting lymph nodes and immune cells.

Hemangiosarcoma

A rare, aggressive form of cancer that arises from the cells lining blood vessels and can occur in any part of the body.