Page 178 - The Miracle of Electricity in the Body
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176                THE MIRACLE OF ELECTRICITY IN THE BODY






                   Superior parietal lobule                 When you decide to lift
                                                            your glass to your lips, the
                                                            brain sends a contraction
                           Image of
               Inferior parietal  Motor
                           body  cortex                     signal to your biceps, con-
               lobule
                                                            tracting the arm. At the
                                                            same time, the triceps at
                     Target                                 the back of the upper arm
                               Estimation                   must expand to let the arm
                                                            bend. The biceps is sent a
                                                            command to contract and
                                                            the cells that straighten
                           Control of
                        “movement plan”
               Cerebellum  Estimating “the                  the arm are commanded to
                                                            halt! Thus the arm ap-
                         image of the
                                                            proaches the mouth.
                 Feedback for learning and  Movement commands  These systems, over
                          organ ”
                    determining errors
                                                            which we have no control
                                                            at all, are a reminder that
                                                            we live in need of our
                                                            Lord.
                                                            God is “rich beyond need”
                                                            (Surah Luqman, 12) and
                                                            the One Who “has power
                                                            over all things” (Surat al-
                                                            Baqara, 20).







               There are more than 650 skeletal muscles in the body, which contract in order
               to close the joints and cause the bones to move. However, all these movements
               take place as the result of an extraordinary co-ordination in the body.


                   A neuropathic disease, the ALS is known as the disease that the
              world-renowned English scientist Stephen Hawking suffers from. The
              disease causes degeneration in the motor neurons (motor movement
              nerve cells), which regulates locomotion. It does this by traveling from
              the brain to the spinal cord, and from there to the muscles. When the
              nerves that trigger muscles are impaired, the muscles cannot be stimu-
              lated. As a result, patients lose their speech and movement functions in
              a short time. Starting with the weakening of the arm and leg muscles,
              and gradually affecting speech, chewing and respiratory functions, the
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