Blood from the coronary sinus empties into the right atrium.
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Q5: Capillaries merge to form venules, which merge
Q6: Closure of the heart's four valves create
Q7: Atrial repolarization produces the T waves seen
Q8: The top of the heart is called
Q9: Parasympathetic stimulation of the heart decreases the
Q11: The cardiac conduction system is composed of
Q12: The endocardial layer of the heart wall
Q13: The atrioventricular (AV) node is responsible for
Q14: The heart is in the pericardial cavity.
Q15: The oxygen-rich vessels that supply the heart
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