Blood Pressure Lab quiz

What is systolic pressure

When the heart is contracting

What is diastolic pressure

when heart is relaxing

What is the average systolic pressure in a healthy person

120 mm Hg

What is the average diastolic pressure in a healthy person

80 mm Hg

What is the formula for calculating MAP

1/3 systolic P+ 2/3 diastolic P= MAP

would systolic pressure be the same in all parts of the body? Explain

No

• further from heart

• increase friction on vessels

• smaller vessels and larger vessels

with regards to blood flow, what does the term pulsatile mean?

pressure rises and lowers with heart contracting and relaxing

what is the name of the instrument that is used to measure blood pressure

sphygmomanometer

what causes the Korotkoff sounds

heat flow in arteries that cause turbulence and vibrations in vessel wall

why is blood pressure measured in the brachial artery of the arm

its the same level as the heart

Describe the parts of the baroreceptor reflex in response to a drop in pressure

Decrease BP— Baroreceptor— brain stem— heart— increase HR—- increase BP