Match each part of the conduction system of the heart to the description of its location or function.
-structure through which conduction moves most slowly
A)Interatrial bundles
B)Atrioventricular node
C)Sinoatrial node
D)Purkinje fibers
E)Bundles of His
F)Internodal bundles

Question

Quizplus · Accepted Answer

The atrioventricular (AV) node is the structure through which conduction moves most slowly, allowing the atria to contract completely before the ventricles.

Answer: C 
 The sinoatrial (SA) node is known as the pacemaker of the heart, generating electrical impulses that initiate the cardiac cycle.

Answer: D 
 The Purkinje fibers are responsible for rapid conduction of electrical activity throughout the ventricles, allowing for coordinated and synchronized ventricular contraction.

Answer: E 
 The bundles of His are specialized cardiac muscle fibers that transmit electrical impulses from the AV node to the ventricles, ultimately leading to ventricular contraction.

Answer: A 
 The interatrial bundles are small bundles of muscle fibers that conduct electrical impulses from the SA node to the atrial muscle cells, facilitating atrial contraction.

Answer: F 
 The internodal bundles are a group of specialized muscle fibers that conduct electrical impulses between the SA node and the AV node, helping to coordinate electrical activity within the atria.

Match Each Part of the Conduction System of the Heart