BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPHATIC SYSTEM
|
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?
|
|
1st
|
|
|
2nd
|
|
|
3rd
|
|
|
4th
|
Explanation:
Detailed explanation-1: -Because the adaptive immune system can learn and remember specific pathogens, it can provide long-lasting defense and protection against recurrent infections.
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.