| 1 | More normal fatty marrow is seen at the far right. | |
| 2 | Bone marrow exists in two types, yellow and red. | |
| 3 | Bone marrow that actively produces blood cells is called red marrow, and bone marrow that no longer produces blood cells is called yellow marrow. | |
| 4 | It produces red blood cells in the inner red marrow and stores fat in the yellow marrow. | |
| 5 | Red bone marrow ( bone marrow hematopoietic cells ) and yellow bone marrow ( fat cells ) branch, have main if red bone marrow hematopoietic results. |