Q. Which of the following are erythropoietic organs? I. liver II. lymph node III. spleen IV. white bone marrow V. red bone marrow Choose the correct option

A) All except I
B) All except II
C) All except I
D) All except IV
Explanation

Process of RBC formation is known as erythropoiesis. Iron, vitamin-$B_{12}$ and folate are essential for RBC production. Erythropoiesis is completed in 72 hours. Erythropoietic organs in foetus are liver, lymph nodes and spleen. Whereas after birth, erythropoietic tissue is red bone marrow

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.