Answers created by Arkan

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• If the sinoatrial node fails in the heart does the heart stop beating, do the ventricles beat at a higher rate, can an artificial pacemaker correct the problem, or would it not affect the heartbeat at all?
  
• What is the name of the double-layered membrane that surrounds the heart?
  
• What type of blood contains A antibodies (but not B antibodies) in the plasma and lacks Rh antigens?
  
• What is another name for the sternum? Where is this bone located?
  
• Does First Pass Metabolism affect Intravenous (IV) medication? Does IV medication completely bypass the liver?
  
• Does the lymphatic system remove bacteria and viruses from the blood?
  
• Tiny threads found in muscle fibers that contain myosin and actin are called what?
  
• What is the visceral pericardium?
  
• What is a gastrointestinal transit?