2.4 blood pressure and and heart disease Flashcards

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1
Q

is your circulatory system similar to a baloon or a fan? and how?

A

a bloon. your heart pumps blood into the heart every time it beats

instead of blowing air into it

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2
Q

what do your heartbetas force, and to do what?

A

your blood, force out of the heart into atreries under pressure

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3
Q

what is your blood pressure?

A

the pressure put on the walls of your arteries by the blood

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4
Q

where is the blood pressure heighest, and where lowest?

A

highest: arteries
lowest: veins

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5
Q

where can you feel the pulse of your heartbeat?

A

side of your neck, or inside of your wrist

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6
Q

where do doctors measure your blood?

and what’s it called

A

at a large artery in your arm called brachial artery)

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7
Q

what are blood measurments expressed in?

A

millimiters of mercury, and in two numbers.

mm of mercury = mmHg

example of 2 numbers: 120 over 80

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8
Q

what is the first number in the blood pressure measurment expression called? and what does it mean?

A

systole = the pressure when the ventricles contract and blood is pushed away from the heart

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9
Q

what is the second number in the blood pressure measurment expression called? and what does it mean?

A

diastole = lowered pressure caused when the ventricles relax and fill up with new blood

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10
Q

does blood pressure stay the same at all time? according to what does it change?

A

no. it changes to meet your body’s needs

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11
Q

when does your blood pressure go up? and when does it go down again to normal level?

A

up: active, angry, scared, stressed

normal: calm, at rest

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12
Q

what’s the “name” if blood pressure remains high?

A

hypertension

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13
Q

why is hypertension bad?

A

the heart must work harder to keep the blood flowing which places an extra strain on it

strain - מאמץ

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14
Q

what can hypertension lead to?

A

heart attack, heart failure, kidney disease, stroke

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15
Q

when does a stroke occur?

stroke = שָׁבָץ

A

when one of the arteries that transport blood to the brain is blocked or ruptured.

ruptured = נקרע

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16
Q

what is one cause of hypertension?

A

atherosclerosis

atherosclerosis = טרשת עורקים

17
Q

what is atherosclerosis?

A

a condition in which fatty materials comming from fried and greasy food are deposited on the inside walls of the arteries.

18
Q

where can the build up fat occur?

the build up fat from the condition atherosclerosis

A

in any artery in the body, but deposits in the coronary arteries are espeicially dangerous

19
Q

what happens when there’s a clogged artery?

A

increase of the blood pressure inside it.

20
Q

what happens when fatty deposits completely block the artery?

A

the blood flow stops

21
Q

what happens when the coronary circulation is blocked, and what can it result?

A

part of your cardiac tissue and stop functioning properly, potentitally resulting a heart attack m

22
Q

how is a plaque fromed?

plaque = רובד

A

when the fatty deposits inside an artery become stiif and hard

fatty deposits = המשקעים השומניים

23
Q

what does a plaque cause?

A

the artery loses its elasticity and is no longer able to expand with the rhythm of the heartbeat. it can also burst. this is the cause of a stroke.

24
Q

what are factors that increase the chance of getting heart disease are?

A

a poor diet (too salty and fatty), smoking, lack of regular exericses, stress and age.

25
Q

what is a cardiac arrest?

A

when a person’s heart stops beating

26
Q

how can somebody’s life be saved from a cardiac arrest?

A

if an AED is close by. .

27
Q

how does the AED save lives?

A

gives an electircal shock in ordee to get the heart beating again.