What Action Causes the First Heart Sound Heard Through a Stethoscope

question 21

Multiple Choice

What action causes the first heart sound heard through a stethoscope?

• A)Opening of the semilunar valves
• B)Closing of the atrioventricular valves
• C)Closing of the semilunar valves
• D)Opening of the atrioventricular valves

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Definitions:

Wall of Separation

A metaphor describing a strict division between government and religious institutions to avoid any undue influence.

Church and State

Refers to the separation between organized religion and the nation state, ensuring that religious institutions do not govern state affairs and vice versa.

Thomas Jefferson

The third President of the United States, a founding father known for authoring the Declaration of Independence, and promoting the principles of democracy and republicanism.

Nationalization

The act of bringing a private sector entity under the control of the government, usually in key industries considered vital to national interests.