Given below are two statements : Statement I : Lymph nodes are small solid structures located at different points along the lymphatic system that serve to trap microorganisms or other antigens entering the blood. Statement II : Mucosa-associated lymphoid tissue (MALT) constitutes about 50 percent of the lymphoid tissue in the human body. In the light of the above statements, choose the most appropriate answer from th

Step-by-step solution

According to NCERT, lymph nodes are small solid structures located at different points along the lymphatic system. They serve to trap microorganisms or other antigens that happen to get into the lymph and tissue fluid, not the blood. The spleen acts as a filter of the blood by trapping blood-borne microorganisms. Thus, Statement I is incorrect. Mucosa-associated lymphoid tissue (MALT) is located within the lining of the major tracts (respiratory, digestive, and urogenital tracts). It constitutes about 50 percent of