Of the Four "Normal" Heart Sounds,the Initial "Lubb" Sound Is

question 57

Multiple Choice

Of the four "normal" heart sounds,the initial "lubb" sound is heard when the

• A)AV valves close.
• B)semilunar valves close.
• C)AV valves open.
• D)semilunar valves open.
• E)foramen ovale closes.

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Definitions:

Suffix

A letter or group of letters added at the end of a word to modify its meaning or change it into a different word class.

Knowledge

The information, understanding, and skills acquired through experience or education.

Prefix

A group of letters added at the beginning of a word to change its meaning, such as "un-" in "unhappy."

Dis-

A prefix meaning apart, away, or having a negative or reversing force.