Heart Flashcards by Graciela-Felice De Leon

Q

epicardium

A

lines outer heart

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Q

auricle

A

increases atrial volume

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Q

right ventricle

A

pumps low O2 blood to lungs

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Q

left ventricle

A

pumps high O2 blood to aorta

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Q

pulmonary trunk

A

sends low O2 blood to the lungs

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Q

pulmonary arteries

A

sends low O2 blood to the lungs

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Q

ascending aorta

A

circulates high O2 blood

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Q

aortic arch

A

brings blood to the whole body

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Q

descending aorta

A

circulates high O2 blood

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Q

ligamentum arteriosum

A

remnant of ductus arteriosis

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Q

brachiocephalic trunk

A

distributes blood to body

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Q

left common carotid artery

A

supplies high O2 blood

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Q

left subclavian artery

A

supplies high O2 blood

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Q

superior vena cava

A

collects low O2 blood to RA

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Q

inferior vena cava

A

collects low O2 blood to RA

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Q

coronary sinus

A

brings blood to the heart for oxygenation

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Q

brachiocephalic veins

A

collects low O2 blood

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Q

myocardium

A

contracts and relaxes heart

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Q

endocardium

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A

lines inner heart

Q

interatrial septum

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A

separates atriums

Q

pectinate muscles

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A

increases contraction power

Q

fossa ovalis

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A

remnant of foramen ovale

Q

interventicular septum

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A

separates ventricles

Q

tricuspid valve

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A

prevents backflow to RA

bicuspid valve

prevents backflow to LA

pulmonary semilunar valve

prevents backflow to RV

aortic semilunar valve

prevents backflow to LV

papillary muscles

holds chordae tendinae

chord tendinae

anchors valves to papillary muscles

trabeculae carnae

increases contraction power

SA node

generates conduction AP

AV node

passes AP to bundle branches

bundle branches

passes AP to purkinje fibers

Purkinje fibers

pases AP to heart

coronary blood vessels

supplies blood to heart muscles

left coronary artery

supplies high O2 blood to heart

circumflex artery

supplies high O2 blood to the arteries

right coronary artery

supplies high O2 blood to heart

anterior interventicular arteries

supplies O2 blood to anterior walls of ventricles

posterior interventicular arteries

supplies high O2 blood to posterior walls of ventricles

great coronary vein

drains front of heart into coronary sinus

right marginal artery

supplies right ventricle

small cardiac vein

drains right heart into coronary sinus

tunica intima

endothelia, sub endothelial layer, elastic membrane

tunica media

smooth muscle, external elastic membrane

tunica externa

vaso vasorum (provides blood to blood vessels)