MEDICINE
INFECTIOUS DISEASES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Remembers encounters with pathogens
|
|
|
Can respond quickly to the same pathogens
|
|
|
Later encounters may be so strong you do not become ill
|
|
|
All of the above
|
Detailed explanation-1: -The immune system keeps a record of every microbe it has ever defeated, in types of white blood cells (B-lymphocytes and T-lymphocytes) known as memory cells. This means it can recognise and destroy the microbe quickly if it enters the body again, before it can multiply and make you feel sick.
Detailed explanation-2: -Immunological memory is a unique property of the immune system as it can “store” information about a stimulus and can mount an effective response when the stimulus is encountered again. This response – a secondary immune response – is quicker and stronger than the primary response.
Detailed explanation-3: -B lymphocytes are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in future infections.
Detailed explanation-4: -When a pathogen attacks the body for the first time, the body gives a primary response which is of low intensity. When the pathogen strikes once again in the future, the secondary response is more intensified. This happens because of the ‘memory’ of the immune system.