Body Fluids And Circulation Question 13
Question: Which of the following correctly traces the electrical impulses that trigger each heartbeat?
Options:
A) Ventricles-Pacemaker-AV node-Atria
B) Pacemaker-AV node-Atria-Ventricles
C) Atria-Pacemaker-AV node-Ventricles
D) Pacemaker-Atria-AV node-Ventricles
Show Answer
Answer:
Correct Answer: D
Solution:
[d] The pacemaker initiates an impulse through the atria, which is then conducted to the ventricles by the AV node.