The Loudest Sound You Hear Through a Stethoscope While Listening

question 4

Multiple Choice

The loudest sound you hear through a stethoscope while listening to your heart is

• A)the contraction of the ventricles.
• B)the relaxation of the ventricles.
• C)the AV valves closing.
• D)the semilunar valves closing.
• E)the depolarization of the ventricles.

---

Definitions:

Carboxylic Acid

Organic compounds characterized by having a carboxyl group (-COOH), involved in a wide range of reactions and found in many biological molecules.

Amide

Organic compounds characterized by a carbonyl group linked to a nitrogen atom, commonly found in proteins and synthetic polymers.

Major Organic Product

The foremost substance formed with the maximum yield in any organic chemical reaction.

Phenylacetic Acid

An organic compound made up of a phenyl group attached to an acetic acid moiety.