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The double-pump function of the heart includes the right side, which serves as the __________ circuit pump and the left side, which serves as the ________ circuit pump.

Pulmonary; systemic

The folds of fibrous tissue that ensure a one-way flow of blood from the atria into the ventricles are the_______?

atrioventricular valves

The portion of the pericardial membrane that lies on the surface of the heart is the _______?

visceral pericardium

The visceral pericardium is the same as the _____?

epicardium

The outer surface of the heart is covered by the _______?

epicardium

The layer of the heart wall that contains cardiac muscle tissue, blood vessels, and nerves is the _______?

myocardium

Blood returning from the systemic circuit first enters the ____________?

right atrium

Blood returning from the lungs enters the ________________ ?

Left atruim

The right ventricle pumps blood to the ______?

Lungs

The left ventricle pumps blood to the _______?

Systemic circuit

The atrioventicular valve located on the right side of the heart is the ______?

tricuspid valve

The bicuspid or mitral valve is located _____?

between the left atrium and left ventricle

the entrance to the ascending aorta is guarded by ____?

semilunar valve

The function of an atrium is _____?

to collect blood

The left and right pulmonary arteries carry blood to the _____?

lungs

the correct sequential path of a normal action potential in the heart is _____?

SA node to AV node to AV bundle to bundle branches to Purkinje fibers

The pacemaker cells of the heart are located in the _____?

SA node

The first heart sound is heard when _____?

AV valves close

Systole and diastole refer to ____?

contraction and relaxation of the heart

Cardiac output is equal to the _____?

product of heart rate and stroke volume.

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