14 TRUE or FALSE Measurement of arterial pressure using a sp

14. TRUE or FALSE. Measurement of arterial pressure using a sphygmomanometer is possible because turbulent blood flow that occurs as arterial pressure overcomes a partially occluded artery can be heard by stethoscope placed over the artery

15. TRUE or FALSE. If the diastolic pressure and systolic pressure were both increased by 10mm Hg, then the pulse pressure would also increased by 10 mmHg

25. The Atrioventricular Nodes

a.excites the left and right atrium

b normally controls the heart rate

c provides a time delay for ventricular filling

d.repolarizes the heart after systole

e. more than one of the above is correct

32. The impulse is passing through the AV node

a.during the p wave

b. between the p wave and QRS complex

c. during QRS complex

d. between the QRS complex and T wave

e. during the T Wave

Solution

14. FALSE- Because when stethescope is placed over the brachial artery in a normal person no sound is audible as the pulses get transmitted smoothly via laminar blood flow throughtout the arteries. In case of sphygmomanometer when the instrument is inflated to a pressure above the pateints normal systolic pressure there will be no audible sound heard.

15. FALSE- The pulse pressure will decrease by 10 as the relation between pulse pressure and systolic-diastolic pressure is that pulse pressure is the difference between systolic and diastolic pressure.

25. more than one of the above are correct.

32. (B) between the Pwave and QRS complex.