Final answer:
All blood cells originate from pluripotent hematopoietic stem cells, which can differentiate into the various cell types that make up the blood, including both lymphoid and myeloid lineages.
Step-by-step explanation:
All blood cells, including red and white blood cells, are derived from a common ancestor cell known as a pluripotent hematopoietic stem cell. These cells are part of a hierarchical system starting from the totipotent stem cell. Hematopoietic stem cells have the capability to differentiate into multiple lineages of blood cells, enabling them to give rise to all the formed elements of blood. This includes differentiating into specialized stem cells, such as lymphoid stem cells and myeloid stem cells, which further give rise to various types of blood cells crucial to our body's functions. The myeloid lineage specifically develops into cells such as erythrocytes, megakaryocytes, monocytes, and granular leukocytes including neutrophils, eosinophils, and basophils.