One type of electrical defect in the heart is a delay in the electrical signal from the sinoatrial node to the relay point. Predict the effect of this defect on the cardiac cycle.
A) The atria relax for a shorter period of time.
B) The atria relax for a longer period of time.
C) The ventricles relax for a shorter period of time.
D) The ventricles relax for a longer period of time.
Correct Answer:
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Q6: Trace the path of a red blood
Q7: Blood pressure that is consistently _ or
Q8: Which of these carry(ies)oxygen-poor blood?
A)pulmonary arteries
B)pulmonary veins
C)aorta
D)left
Q9: Why is blood pressure higher during systole
Q10: Blood pressure is lowest in _.
A)veins
B)capillaries
C)arterioles
D)venules
Q12: Which is a characteristic of open circulatory
Q13: Veins carry _.
A)blood away from the heart
B)oxygen-rich
Q14: What is one way in which the
Q15: The basic rhythm of the heartbeat is
Q16: If your blood pressure were 120/70, it
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