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TEAS - SCIENCE > Cardiovascular System > Flashcards

Cardiovascular System Flashcards

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1
Q

cardiac tissue that makes up the heart muscles

A

MYOCARDIUM

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2
Q

sac that surrounds the heart

A

PERICARDIUM

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3
Q

four chambers divided by a median septum

A

2 inferior ventricles

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4
Q

receiving chambers

A

2 superior atrias

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5
Q

pumpin chambers

A

2 inferior ventricles

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6
Q

PULMONARY SYSTEM

A

The right side of the heart that pumps deoxygenated blood from heart towards the lungs

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7
Q

SYSTEMIC SYSTEM

A

left side of the heart that received oxygenated blood from lungs and pumps it towards the rest of the body

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8
Q

ERYTHROCYTES

A

red blood cells

contains HEMOGLOBIN

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9
Q

LEUKOCYTES

A

white blood cells

functions in immunity

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10
Q

HEMOGLOBIN

A

protein in red blood cells that carries oxygen from lungs to body’s tissues.

then returns carbon dioxide from tissues back to lungs

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11
Q

PLASMA

A

yellow liquid in blood

contains water, immune proteins, and other substances

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12
Q

SYSTOLE

A

contraction of atria followed by ventricles to empty blood

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13
Q

DIASTOLE

A

rest phase, when chambers relax and refills with blood

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14
Q

heartbeat contraction 6 steps

A

1 impulse in SINOATRIAL (SA) NODE
2 contraction in ATRIA which forced blood into VENTRICLES
3 impulse in ATRIOVENTRICULAR (AV) NODE
4 impulse down AV bundle
5 impulse to right and left septum
6 impulse in Purkinje fibers of VENTRICLES

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15
Q

flow of PULMONARY SYSTEM (from heart to lungs)

A

VENA CAVA > R ATRIUM > R AV (TRICUSPID) VALVE > R VENTRICLE > SEMILUNAR VALVE > PULMONARY ARTERY > LUNGS

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16
Q

flow of SYSTEMIC SYSTEM

from lungs to heart to rest of the body

A

LUNGS > PULMONRY VEINS > L ATRIUM > L AV (BICUSPID, MITRAL) VALVE > L VENTRICLE > AORTIC SEMILUNAR VALVE > AORTA > BODY

17
Q

ATHEROSCLEROSIS

A

buildup of plaque in blood vessels

reduces flow of blood

when plaque breaks of, it can travel to smaller vessles and block

18
Q

HEART ATTACK

A

when flow of blood to a part of heart muscle is blocked causing cardiac muscle tissue to die

19
Q

HYPERTENSION

A

high blood pressure

20
Q

which vessels carry deoxygenated blood?

A

PULMONARY ARTERIES and VENA CAVA

21
Q

VENA CAVA

A

carries deoxygenated blood to heart

22
Q

PULMONARY ARTERIES

A

carries deoxygenated blood away from heart and to lungs

23
Q

why are arteries thicker and more elastic than veins?

A

arteries are under greater pressure from heartbeat

24
Q

blood pressure reads

__/__ mm Hg

A

systole/diastole mm Hg

25
Q

oxygenated blood passes thru which vessels?

A

MITRAL and AORTIC VALVES

26
Q

STROKE

A

rupture of blood vessel in brain

TEAS - SCIENCE (11 decks)

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