Blood pressure lab quiz

systolic pressure

when the cardiac muscle is contracted

diastolic pressure

when the cardiac muscle is relaxed

What is the average systolic pressure in a healthy human

<120 mmHg

what is the average diastolic presure in a healthy person

<80 mmHg

Would systolic pressure be the same in all parts of the body?

no, The overall pressure is reduced farther away from the heart. In larger areas the vessels are smaller

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

Blood flow through the arteries and arterioles. heart contracting and relaxing

if someone has the blood pressure of 120/75, what would the mean arterial pressure be?

120(1/3) + 75(2/3) = 40 + 50 = 90

What is the name if the instrament used to measure blood pressure

sphygmomanometer.

What causes the korotkoff sounds

Spurting of blood causes vibrations in the walls of the artery

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

It is close to the heart and therefore pulsatile. same level as heart

how does standing effect blood pressure and heart rate

Blood pressure drops. heart rate increases

how did the blood pressure change when the arm was raise

lower blood pressure when the arm was raised

The average blood pressure

SBP - DBP 120 - 80 = 40