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MedTerm-Chapter 9

TermDefinition
aort/o aorta
arteri/o artery
ather/o fatty (lipid) pastes
atri/o atrium
cardi/o heart
coron/o circle or crown
pector/o chest
phleb/o vein
sphygm/o pulse
thromb/o clot
varic/o swollen, twisted vein
vascul/o vessel
ventricul/o ventricle (belly or pouch)
atrium upper right or left chamber of the heart
endocardium membrane lining the cavities of the heart
epicardium membrane forming the outer layer of the heart
interatrial septum partition between the right and left atria
interventricular septum partition between the right and left ventricles
myocardium heart muscle
pericardium protective sac enclosing the heart composed of two layers with fluid between
pericardial cavity fluid-filled cavity between the pericardial layers
heart valves structures within the heart that open and close with the heartbeat to regulate the one-way flow of blood
bicuspid valve heart valve between the left atrium and the left ventricle (cuspis = point); also called the mitral valve
aortic valve heart valve between the left ventricle and the aorta
pulmonary valve heart valve opening from the right ventricle to the pulmonary artery (luna = moon); also called the pulmonary semilunar valve
tricuspid valve valve between the right atrium and the right ventricle
arteries vessels that carry blood away from the heart to the arterioles
aorta large artery that is the main trunk of the arterial system branching from the left ventricle
arterioles small vessels that receive blood from the arteries
capillaries tiny vessels that join arterioles and venules
venules small vessels that gather blood from the capillaries into the veins
veins vessels that carry blood to the heart from the venules
arrhythmia any of several kinds of irregularity or loss of rhythm of the heartbeat
Created by: Cdickinson2
 

 



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