Examlex
For primary radiation,what is the term that represents a portion of beam-on time that the x-ray beam is directed at a primary barrier during the week?
Heart Sound
Sounds produced by the closing of heart valves during the cardiac cycle; typically described as a "lub-dub" sound.
Heart Murmur
An unusual or abnormal sound heard between heartbeats, which can be innocent or indicate a heart problem.
Extra Heart Beat
An additional heartbeat that occurs outside of the normal rhythm, also known as premature contraction.
End-Systolic Volume
The volume of blood in the ventricle of the heart immediately after contraction, before the heart fills again.
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