NEETZoologyHuman Health and Diseases
Where are lymph nodes located in the human body?
Options
- AIn the respiratory, digestive and urogenital tracts
- BAlong the lymphatic system
- CIn the mucosa-associated lymphoid tissue (MALT)
- DIn the thymus
Correct answer
B. Along the lymphatic system
Step-by-step solution
The primary lymphoid organs in the human body are the bone marrow and thymus, where immature lymphocytes differentiate into antigen-sensitive lymphocytes. Lymph nodes are small solid structures located at different points along the lymphatic system. Antigens trapped in the lymph nodes are responsible for the activation of lymphocytes present there and cause the immune response.The thymus is quite large at the time of birth but keeps reducing in size with age. By the time puberty is attained, it reduces to a very sm