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Cardiovascular System

Across
The __node is the natural pacemaker of the heart
A lower chamber of the heart
The type of vessel that lead away from the heart
The innermost layer of the heart, contiguous with the heart valves
Phase 2 of the action potential may be referred as the __channel
Pressure receptors
The outermost layer of the heart
A potent endogenous vasoconstrictor
The relaxation phase of the cardiac cycle
The upper chambers of the heart
The contraction phase of the cardiac cycle
Down
The __node slows the impulse down for complete atrial contraction before the ventricles contract
Phase I of the action potential may be referred to as the __channel
The ability of the cardiac cells to respond to a cardiac impulse
The valve between the right atrium and the right ventricle
Phase 3 of the action potential may be referred as the __channel
The __fraction, is the percentage of blood that was in the ventricle before systole to be pumped out
The type of pressure that pulls fluid into the capillary
The pressure against with the ventricle must pump
The valve between left ventricle and the aorta