All types of white blood cells can be produced in the bone marrow as well as in lymphoid organs, such as the lymph nodes and tonsils.

Question

Quizplus · Accepted Answer

While most white blood cells are produced in the bone marrow, not all types are produced in lymphoid organs. Lymphoid organs primarily support the maturation and function of certain white blood cells, like lymphocytes, but do not produce all types of white blood cells.

All Types of White Blood Cells Can Be Produced in the Bone