Specifically, it refers to the processes that occur within the body to create the various components of blood, including:

* Red blood cells: Carry oxygen to the body's tissues.

* White blood cells: Fight infection and disease.

* Platelets: Help with blood clotting.

The bone marrow is the primary hemopoietic organ in the body, although the spleen, liver, and lymph nodes also play a role.

So, when you hear "hemopoietic," think "blood formation."