Anhvanyds – Medical English

the term conducting system

View the animation below, then complete the quiz to test your knowledge of the concept.

the term conducting system

1. In the heart, an action potential originates in the…
A) Purkinje fibers.
B) bundle branches.
C) atrioventricular bundle.
D) atrioventricular node.
E) sinoatrial node.

2. The sequence of travel by an action potential through the heart is…
A) sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers.
B) atrioventricular node, sinoatrial node, atrioventricular bundle, bundle branches, Purkinje fibers.
C) atrioventricular bundle, atrioventricular node, sinoatrial node, bundle branches, Purkinje fibers.
D) Purkinje fibers, atrioventricular bundle, atrioventricular node, sinoatrial node, bundle branches.
E) atrioventricular node, sinoatrial bundle, atrioventricular node, bundle branches, Purkinje fibers.

3. Which of the following is true regarding the heart conduction system?
A) action potentials pass slowly through the atrioventricular node.
B) action potentials pass slowly through the atrioventricular bundle.
C) action potentials pass slowly through the Purkinje fibers.
D) action potentials pass slowly through the ventricle wall.
E) action potentials pass slowly through the bundle branches.

4. In the ventricles, the action potential travels along the interventricular septum to the apex of the heart, where it then spreads superiorly along the ventricle walls.
A) True
B) False

5. Action potentials are carried by the Purkinje fibers from the bundle branches to the ventricular walls.
A) True
B) False

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