Lab 6 Quiz

Conditions that contribute to the systolic and diastolic pressures

Walls of blood vessels may contain smooth muscle which can contract and decrease lumen size, raising resistance, which raises blood pressure

Walls of blood vessels may contain ______ ______ which can contract and decrease _______ size, raising _______, which raises ______ ______

smooth muscle, lumen, resistance, blood pressure

What also plays an important role in blood pressure (recall that blood plasma is mostly water, so amount of water in body influences ____ ____ and therefore blood pressure)?

Blood volume

Blood volume

total amount of fluid circulating through the heart, arteries, veins, and capillaries of the bod

Diastolic blood pressure:

Occurs during _____ ______; ______ pressure exerted on artery

ventricular relaxation, minimum

Occurs during ventricular relaxation; minimum pressure exerted on artery

Diastolic blood pressure

Systolic blood pressure:

Occurs during _____ ______; _______ pressure exerted on artery

ventricular contraction, maximum

Occurs during ventricular contraction; maximum pressure exerted on artery

Systolic blood pressure

Where can arterial pulse be palpated?

The Fat Cats Always Be Running From Poor Pet Ducks.

Arteries - temporal, facial, common carotid, axillary, brachial, radial, femoral, popliteal, posterior tibial, dorsalis pedis

Pulse pressure formula =

systolic blood pressure - diastolic blood pressure

average pulse rate in a resting adult

60 – 80bpm

MAP formula =

diastolic blood pressure + (systolic - diastolic) / 3

Pulse Pressure should be at least __% of systolic pressure

25

Low Pulse Pressure may result from low _____ ______(CHF, valve stenosis, hemorrhage)

stroke volume

low stoke volume can result from …

CHF(Congestive heart failure), valve stenosis, hemorrhage

High ___ _____ is common in healthy people following exercise

(resting PP may be ___ to _____ and it may increase to _____ mm Hg as stroke volume increases)

High Pulse Pressure is common in healthy people following exercise (resting PP may be 30 – 40 and it may increase to 100 mm Hg as stroke volume increases)

Chronically high PP can indicate abnormally high ______ in _______

resistance in arteries

MAP measures the average ______ of blood in the _____ throughout the ______ _____

pressure, arteries, cardiac cycle

MAP is directly proportional to _____ and ______ _______

CO(cardiac output), peripheral resistance

MAP: Normal range of values is ____ to ____ mm Hg (enough to provide blood flow and oxygen to heart, brain, kidneys)

70 – 110

MAP value of 70 - 110 mm Hg is enough to provide ____ _____ and ______ to heart, brain, kidneys

blood flow, oxygen

MAP value of ____ - ____ mm Hg is enough to provide blood flow and oxygen to ______, _____, and _____

70 - 110

heart, brain, kidneys

MAP indicates ______ of vital organs

perfusion

Minimum of ____ mm Hg is necessary to perfuse tissues

60

ischemia (____ ____ ____) will often produce hypoxia (_____ ____ ____)

insufficient blood flow, insufficient oxygenation of tissues

what will often produce hypoxia?

ischemia

High PP is common in ______ people following _______(resting PP may be 30 – 40 and it may increase to 100 mm Hg as stroke volume increases)

healthy, exercise

Effect of Exercise on blood pressure

increases blood pressure, lowers resting blood pressure over time

Effect of Exercise on MAP

increases MAP

Effect of Exercise on cardiac output

increases cardiac output

Cardiac output formula 🫀🥵

CO = HR × SV

Effect of Exercise on heart rate

increases your heart rate immediately during physical activity and lowers your resting heart rate over time

Effect of Exercise on stroke volume

increases stroke volume

stroke volume formula 😪 - 😅

SV = EDV (end diastolic volume) – ESV (end systolic volume)