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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: Grade 11
Author: hener
Last Modified: 6 years ago

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Circulatory and Immune Systems Question

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Grade 11 Circulatory and Immune Systems

This is called the heart's pacemaker.
  1. atrioventricular (AV) node
  2. sinoatrial (SA) node
  3. fibrillation (F) node