IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

LYMPHATIC TISSUES AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which line of defense has memory that recognizes and mounts an enhanced attack on previously encountered pathogens?
A
1st
B
2nd
C
3rd
D
4th
Explanation: 

Detailed explanation-1: -Immunological memory is defined by the ability of the host to recognise and mount a robust secondary response against a previously encountered pathogen.

Detailed explanation-2: -The second line of defence is a group of cells, tissues and organs that work together to protect the body. This is the immune system.

Detailed explanation-3: -Immune memory is a function of specificity and longevity-the ability of antigen-specific cells of the immune system to recognize and “remember” pathogens previously encountered and to produce a qualitatively and quantitatively different response (i.e., faster or more robust) than the first encounter.

There is 1 question to complete.