The 'second line of defence' is known as

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The human body has three lines of defence against pathogens.$1$. The 'first line of defence' consists of physical and physiological barriers like

Vedclass · Accepted Answer

$WBC$

Vedclass · Answer

(B) The human body has three lines of defence against pathogens.$1$. The 'first line of defence' consists of physical and physiological barriers like skin,mucus,and secretions.$2$. The 'second line of defence' is the innate immune response,which includes cellular barriers like $WBC$ (specifically phagocytes like macrophages and neutrophils),inflammatory responses,and fever.$3$. The 'third line of defence' is the adaptive or acquired immune response,which involves $B$-lymphocytes and $T$-lymphocytes (antibodies).Therefore,$WBC$ are the components that constitute the second line of defence.

Similar Questions

Which group of cells acts as phagocytes?

In passive acquired immunity,.........

Define and explain: Active immunity and Passive immunity.

After birth,an infant receives antibodies $IgA$ through colostrum from the mother. This is an example of . . . . . . immunity.

Antibodies are produced by

Vedclass Test Series

Exam Paper Generator

Online Exam Module