What Is Autonomic Dysfunction? The autonomic nervous system (ANS) - TopicsExpress



          

What Is Autonomic Dysfunction? The autonomic nervous system (ANS) controls several basic bodily functions. These include heart rate, body temperature, breathing rate, digestion, and many other systems as well. You don’t have to consciously think about these systems in order for them to work. The ANS provides the connection between your brain and your internal organs. For instance, it connects to the heart, liver, sweat glands, and even the interior muscles of your eye. The ANS is made up of two subsystems: the sympathetic autonomic nervous system (SANS) and the parasympathetic autonomic nervous system (PANS). Most organs have nerves from both the sympathetic and parasympathetic systems. The SANS usually stimulates organs. For instance, it increases heart rate and blood pressure when necessary. The PANS, on the other hand usually slows down bodily processes. For example, it reduces heart rate and blood pressure. There are certainly exceptions. Digestion and urination, for instance are stimulated by the PANS and slowed by the SANS. The general responsibility of the SANS is to trigger emergency responses when required. These “fight or flight” responses get you ready to respond to stressful situations. The PANS, on the other hand, conserves your energy and restores tissues for ordinary functions. Problems with the ANS can range from mild to life threatening. Sometimes only one part of the nervous system is affected. In other cases, the entire ANS is affected. Some conditions are temporary and can be reversed, while others are chronic and will continue to worsen over time. Diseases such as diabetes or Parkinson’s disease can cause irregularities with the ANS. Problems with ANS regulation often involve organ failure, or the failure of the nerves to transmit a necessary signal.
Posted on: Fri, 21 Mar 2014 22:53:10 +0000

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