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The Heart
Gross Anatomy
25
Physiology
Undergraduate 2
09/20/2010

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Term
blood vessels arranged
Definition
parallel
Term
blood distributed to 6 major organ systems
Definition
heart brain kidneys skin muscles and GI system
Term
blood leaving pulmonary circuit is arterial/venous?
Definition
arterial
Term
blood leaving pulmonary circuit enters what heart chamber?
Definition
left atrium
Term
define cardiac output
Definition
amount of blood pumped by ventricles per unit time
Term
cardiac output- under normal conditions how many liters of blood are pumped out by the right and left ventricle/ minute
Definition
5 liters
Term
cardiac output can be increased to as much as __ liters/ minute
Definition
30
Term
epicardium AKA
Definition
visceral pericardium
Term
purpose of pericardium
Definition
protects& anchors heart
prevents overfilling
Term
myocardium
Definition
muscle of heart tissue. bulk of heart
Term
endocardium
Definition
endothelial layer of the inner myocardial surface
Term
chordae tendonae; attach valves to?
Definition
the tissue flaps of the AV valves; attach valve cusps to inner ventricular walls
Term
chordae tendinae prevent prolapse of valves into...
Definition
the atria during ventricular contraction
Term
papillary muscles
Definition
regulate tension in the chordae tendinae, and contract simultaneously with the ventricles
Term
Which valves are pressure dependent?
Definition
aortic and pulmonary(semilunar)
Term
Right and Left Coronary artery originate?
Definition
Ascending Aorta
Term
Right coronary artery supplies what specific locations of the heart with blood?
Definition
Both Ventricles, SA Node, AV node, part of Right Atrium and Interventricular septum
Term
Marginal branch originates?
Supplies?
Definition
the marginal branch originates on the right coronary and supplies the anterior portions of the right ventricle
Term
Marginal branch originates?
Supplies?
Definition
the marginal branch originates on the right coronary and supplies the anterior portions of the right ventricle
Term
posterior interventricular branch originates?
supplies?
Definition
the posterior interventricular branch originates on the right coronary and supplies the posterior portions of both ventricles
Term
Left Coronary Artery supplies?
Definition
supplies the SA node, and parts of the left atrium, interventricular septum, and ventricles
Term
circumflex branch supplies?
Definition
the circumflex branch supplies the left atrium and posterior regions of the left ventricle
Term
anterior interventricular branch supplies?
Definition
the anterior interventricular branch originates from the left coronary and supplies the anterior portions of both ventricles
Term
great cardiac veins drain
middle cardiac vein drains
both drain into the
Definition
anterior heart
posterior heart
coronary sinus
Term
coronary sinus drains into the
Definition
right atrium
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