The muffling of sound during blood pressure measurement corresponds to the diastolic pressure because it occurs when the blood flow resumes through the artery after the pressure in the cuff is released. Initially, as the cuff pressure decreases, the sounds of turbulent blood flow (Korotkoff sounds) are heard. When these sounds begin to soften and eventually disappear, it indicates that the arterial pressure has fallen to the level of diastolic pressure, where the heart is at rest between beats. Thus, the transition from distinct sounds to muffled sounds marks the point of diastolic pressure.
The opposite of muffling a sound would be amplifying.
diastolic pressure
it is when you can not hear anything
To read a sphygmomanometer, first inflate the cuff until the gauge reads around 180 mmHg. Then, slowly release the pressure while listening for the first and last sounds, which indicate the systolic and diastolic blood pressure values. Note these values as your reading.
systolic
The diastolic sound in blood pressure is primarily caused by the closure of the heart's semilunar valves (aortic and pulmonary) at the end of ventricular systole. This closure creates a brief vibration in the blood and surrounding tissues, which can be detected as a sound using a stethoscope. In clinical practice, the diastolic pressure is measured at the point where these sounds disappear (Korotkoff sound phase V), indicating the pressure in the arteries when the heart is at rest between beats.
the muffling cat pooped in a toilet and peed on the ground
yes
No. The sound that is heard is generated by turbulent flow when blood overcomes the pressure of the cuff (at the systolic point), but collapses because the cuff pressure exceeds the diastolic pressure. One the cuff is below the systolic pressure, there will be a pulse.
In many pregnant women, the 4th phase karatkoff sound is audible even though there is no pressure in the cuff. Hence, this leads to a 5th phase karatkoff sound (diastolic pressure reading) of 0. So yes, a systolic reading of 110 and a diastolic of 0 is possible - an example would be in pregnancy.
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A muffled sound. To muffle means to wrap with something to deaden sound (you know, for example, a girl is kidnapped by a gang and they put a handkerchief on her mouth. When she goes "Mmmph!", that's what muffling sounds like).