Pharmacology

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Antacids classification and details

Posted by Piscean on May 11, 2013

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Division of Nervous System

Division of Nervous System Click to view Full size

Organization of autonomic nervous system

Organization of autonomic nervous system The autonomic nervous system regulates all involuntary functions such as secretion of hormones; contraction of the heart muscle, blood vessels and bronchioles; and the ability to move substances through the digestive tract. The ANS can be further divided into the sympathetic and parasympathetic nervous systems (PNS). The autonomic nervous system consists of sensory neurons and motor neurons that run between the central nervous system (especially the hypothalamus and medulla oblongata ) and various internal organs such as the: heart lungs viscera glands (both exocrine and endocrine) It is responsible for monitoring conditions in the internal environment and bringing about appropriate changes in them. The contraction of both smooth muscle and cardiac muscle is controlled by motor neurons of the autonomic system. The actions of the autonomic nervous system are largely involuntary (in contrast to those of the sen

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