Page 5 - Bones
P. 5

There are two types of bone marrow – yellow and red.
                                     Red bone marrow is more important

                                 because it makes red and white blood cells
                                      Yellow bone marrow is mostly fat.











































                                                       Source: pixabay



                                    It is interesting that when we are born
                                     all our bones have red bone marrow,

                                              but when we are adults
                               only half of our bones have red bone marrow.













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