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HSII Ch. 12 Vocab Pt. 3
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hepatic portal circulation
route of blood flow through the liver
mitral valve
also called the bicuspid valve
myocardial infarction (MI)
death of cardiac muscle cells because of inadequate blood supply as in coronary thrombosis
myocardium
heart muscle
P wave
deflection on ECG occurs with depolarization of atria
pericarditis
inflamed pericardium
pericardium
membrane that surrounds the heart
peripheral resistance
blocked blood flow to peripheral arteries
pulmonary circulation
venous blood flow from R atrium -> lung -> L atrium
pulse
alternating expansion and recoil of arterial walls produced by alternating contraction/relaxation of ventricles
travels in a wave away from the heart
Purkinje fibers
cells in walls of ventricles relay nerve impulses from AV node to ventricles. causing them to contract
QRS complex
deflection of an ECG because of the depolarization of ventricles
semilunar valve (SL)
valves located between 2 ventricular chambers & the lg. arteries that carry blood away from the heart
found in veins
sinoatrial node (SA)
pacemaker
where impulse conduction normally starts
located in the wall of the R atrium near the opening of the superior vena cava
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Author
trambam
ID
183225
Card Set
HSII Ch. 12 Vocab Pt. 3
Description
cardiovascular system part three
Updated
2012-11-12T20:42:00Z
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