Lymph nodes are secondary lymphoid organs. Explain the role of lymph nodes in our immune response.
Lymph nodes are small solid structures located at different points along the lymphatic system.
Lymph nodes trap the microorganisms or other antigens, which happen to get into the lymph and tissue fluid.
Antigens trapped in the lymph nodes are responsible for the activation of lymphocytes present there, causes production of antibodies.
It causes the immune response.
They also destroyes cancer cells.
Tobacco smoke contains carbon monoxide which
Sleep is prevented by
Smack is generally taken by
$\,$
Drugs and alcohol give short-term 'high' and long-term 'damages', Discuss.