👉 A protohematoblast is a type of hematopoietic progenitor cell that originates from bone marrow, an organ located in the vertebral column. These cells are responsible for producing red blood cells, which are essential components of the immune system and other body tissues. The term "protohematoblast" refers to this type of hematopoietic progenitor cell because it is derived from bone marrow rather than a specific lineage or type of hematopoietic stem cell. This
