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Monday, May 24, 2010

AMYOTROPHIC LATERAL SCLEROSIS - AN EXPLANATION - LESSON 199


ALS is nothing but amyotrophic lateral sclerosis. The other name of this disease is Lou Gehrig's disease. Amyotrophy means muscle wasting caused by disease of the nerves that supply to the muscles.  The cause is unknown yet medically. A- means nothing, myo-means muscle, and -trophy means growth, sclerosis means hardening or thickening. That is a state in which muscle gets hardened or thickened due to no sensation.  

Our nervous system is of two types that is Central nervous system and peripheral nervous system (PNS).  Central nervous system includes brain and spinal cord and the nerves associated with it that is integrative and control centers of the body (central and autonomic nerves).  Peripheral nervous system consists of the cranial nerves (nerves that connect eyes, ears, nose, and mouth to the brain) and spinal nerves (nerves connect the brain to the hands and feet).  Peripheral nervous system is an extension of central nervous system, which unites CNS to the upper and lower extremities (hands and feet) and other organs in the body.  These two nervous systems coordinate all body functions in our body.   The functions of total nervous system are of two types that are motor and sensory, by which we connect ourselves internally and externally to the world.

Amyotrophic lateral sclerosis (ALS) is a neurological disease condition, in which the nerves interrupted or collapsed from doing their normal function i.e. nerve tissues in the CNS (Central Nervous System) are affected and degenerated. When this disease affects a person's body movements affect, as this ALS has an effect on the motor nerves in charge for the movements.

Now we will see the description of amyotrophic lateral sclerosis.   Body moves when the sensation from the upper motor neuron reaches the lower motor neurons through brain and spinal cord.  In amyotrophic lateral sclerosis (ALS), these motor neurons answerable to the muscle movement stop working the 'voluntary' muscles in the hands, the feet, and the body.  This condition of muscles is called amyotrophy.  In this state the other sensations of the eyes, ears, nose, and mouth will not get affected, but only the muscle movements.

In the next post we will learn about STRUCTURE OF THE BONES..Okay..

Come on....

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