heart Flashcards by Nina Dunning

Q

systemic circulation

A

responsible for the “whole” body circulation

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Q

Pulmonary circulation

A

transports “dirty” deoxygenated blood to lungs to get re-oxygenated

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Q

mediastinum

A

location of the heart

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Q

Pericardial cavity

A

filled with pericardial fluid

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Q

Atrioventricular valves (AV)

A

tricuspid & bicuspid

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Q

semi-lunar valve

A

aortic & pulmonary valve

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Q

regurgitation

A

back flow of blood into chambers

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Q

stenosis

A

narrowing of valve

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Q

insufficiency

A

valve doesn’t close all the way

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Q

untreated strep throat leads to rheumatic fever

A

harm mitral (bicuspid) & aortic valves

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Q

coronary

A

feeds myocardium arteries

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Q

rt coronary artery

A

supplies blood to right atrium

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Q

marginal branch

A

rt ventricle

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Q

left coronary artery

A

left atria & left ventricle

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Q

LAD

A

“widow maker”, supplies both ventricles

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Q

small cardiac vein

A

takes deoxygenated blood from rt atria & ventricle

Q

rt anterior vein

A

rt ventricle

Q

middle cardiac vein

A

from rt to left ventricle

Q

great cardiac vein

A

drain left atrium/rt & left ventricle

Q

SA node

A

pace maker, generates heart rhythm

Q

bachmann bundle

A

carry impulse to left atrium

Q

AV node

A

helps to carry impulse to bundle of his

Q

bundle of his/purkinje

A

carries impulse to jentrides

Q

P wave

A

atrial contraction

Q

QRS wave

A

ventricular contraction

Q

S-T interval

A

end of contraction

Q

T wave

A

ventricular relaxation; getting ready for next contract

Q

Tachycardia

A

heart beat per mins over 100 (fast)

Q

Bradycardia

A

beats less than 40 per mins (slow)