Question:

The primary lymphoid organs are

Updated On: Jul 7, 2022
  • spleen and thymus
  • bone marrow and thymus
  • bone marrow and lymph node
  • thymus and $MALT$
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The Correct Option is B

Solution and Explanation

Bone marrow and thymus are primary lymphoid organs where differentiation and proliferation of immature lymphocytes occurs.
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Concepts Used:

Immune System

It consists of tissues, cells, soluble molecules like antibodies and lymphoid organs. The WBC cells called the leucocytes have a significant role as they seek out to destroy the disease-causing organisms. These leucocytes are stored in different locations in the body including the spleen, bone marrow, and thymus. These organs are called as the lymphoid organs. The leucocytes are also present in the lymph nodes of the body.It is considered as the main lymphoid orga and. It produces all the blood cells including the lymphocytes. The thymus is an organ that is present near to the heart, beneath the breastbone.