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 $WBC$
Match the columns :
Column - $I$ | Column - $II$ |
$(a)$ Physical barrier | $(1)$ skin |
$(b)$ Physiological barrier | $(2)$ interferon protein |
$(c)$ Cellular barrier | $(3)$ leucocytes |
$(d)$ Cytokine barrier | $(4)$ Saliva in the mouth |
Why is mother's milk considered the most appropriate food for a new born infant ?
Which is an auto immune disease
After vaccination the body builds up
Some people who have suffered from a disease may not be affected again during their life time; such immunity is called