Anatomy and Physiology II Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the Anatomy and Physiology II Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready to ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following is not a part of the electrical conductance system of the heart?

Sinoatrial node
Bundle of His
Purkinje fibers
Sentinel node

The correct answer is: Sentinel node

The sentinel node is not a recognized part of the electrical conduction system of the heart. The conduction system is crucial for maintaining the heart’s rhythm and includes structures that generate and propagate electrical impulses, ultimately coordinating heart contractions. The sinoatrial node, often referred to as the pacemaker of the heart, initiates the electrical signals that trigger each heartbeat. The bundle of His, also known as the atrioventricular bundle, carries these impulses from the atria to the ventricles. Purkinje fibers further distribute the electrical impulses across the ventricles, ensuring a coordinated contraction. The other options are integral components of this system, playing specific roles in generating and conducting the electrical signals that regulate heart activity, while the sentinel node does not pertain to cardiac function.