When taking blood pressure, the sounds heard when the pressure cuff is released are due to when taking blood pressure, the sounds heard when the pressure cuff is released are due to the smaller than normal diameter of the blood vessel smooth blood flow the larger than normal diameter of the blood vessel turbulent blood flow?

The larger than normal diameter of the blood vessel turbulent blood flow

Explanation:

The instrument used to measure blood pressure is the sphygmomanometer, and the most used types are the mercury column and the pointer (aneroid), both of which have an inflatable cuff that is placed around the patient's arm.

The stethoscope is the instrument that amplifies sounds and transmits them to the operator's ears.

The series of sounds that the operator hears when checking blood pressure are called Korotkoff sounds. The first clear sound, when blood flows through the compressed artery, is systolic pressure. Diastolic pressure occurs at the point where the sound changes or disappears.

These sounds are due to the larger than normal diameter of the blood vessel turbulent blood flow.