The principle function of the lymph node in the man is
Destruction of old $ RBC$
Destruction of old $WBC$
Collection and destruction of pathogens blood
Production of $WBC$
’Pathogens' are also known as
Given below are two statements :
Statement $I:$Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.
Statement $II:$Rheumatoid arthritis is a condition where body does not attack self cells.
In the light of the above statements, choose the most appropriate answer from the options given below:
Humoral immunity is due to
An autoimmune disease is