Q. What is the main lymphoid organ where all blood cells including lymphocytes are produced?
A) Bone marrow
B) Tonsils
C) Liver
D) Spleen
Explanation
Blood cells are made in the bone marrow. Erythrocytes or red blood cells, are constantly being produced and released from marrow tissue. Leukocytes or white blood cells are also produced in the bone marrow. B-cells are leukocytes that are made and mature in the bone marrow while T-cells mature in thymus
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.