Page 230 - The Miracle of the Blood and Heart
P. 230

THE MIRACLE OF THE
                                       BLOOD AND HEART


                        VEIN


                                   Inner layer
                                   Endothelium



                                                       One-way venous valves
                                    Middle layer
                                    Smooth muscle
                                    and elastic tissue

                                                          Valve
                                      Outer layer
                                      (elastic and col-
                                      lagen fibers)
                         Lumen

                 As a requirement of the work the veins perform in our bodies, they possess a differ-
                 ent structure. Valves in the veins can open and close as deoxygenated blood is car-
                 ried back to the heart. Thanks to them, blood is prevented from flowing backwards
                 and always forwarded to the heart.
                 How do the veins know that they need to possess such valves? This example once
                 again shows us the superior knowledge and creation of our Lord, Who created us so
                 perfectly.

                       The concept of balances within the body may be unfamil-
                   iar to most people, because they spend their lives with no
                   great difficulties.  Yet there are innumerable balances in the
                   body that need to be maintained and should never be
                   impaired in any way. The blood's circulation is just one exam-
                   ple. Many factors might have a negative effect on this equilib-
                   rium, but the system for keeping this balance is so incompara-
                   ble that the amount of blood leaving the heart and the blood
                   returning to it are always the same.
                            If this balance is disrupted, blood sent out to the
                            extremities cannot return, but will accumulate in var-


               Harun
               Yahya



                                               228
   225   226   227   228   229   230   231   232   233   234   235