IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

IMMUNITY INNATE AND ADAPTIVE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Specific immunity is described as
A
the body’s ability to produce specific antibodies for specific antigens
B
the body’s ability to respond to antigens no matter where they are in the body
C
the body’s ability to recognize and tolerate it’s own cell’s antigens
D
the body’s ability to remember antigens that have appeared in our body previously
Explanation: 

Detailed explanation-1: -Acquired immunity is also called specific immunity because it tailors its attack to a specific antigen previously encountered. Its hallmarks are its ability to learn, adapt, and remember. Acquired immunity takes time to develop after first exposure to a new antigen.

Detailed explanation-2: -Acquired immunity is immunity that develops with exposure to various antigens. Your immune system builds a defense against that specific antigen. Passive immunity is due to antibodies that are produced in a body other than your own.

Detailed explanation-3: -Antibodies are produced by B cells (specialized white blood cells). When an antigen comes into contact with a B cell, it causes the B cell to divide and clone. These cloned B cells-or plasma cells-release millions of antibodies into your bloodstream and lymph system.

Detailed explanation-4: -The adaptive (specific) immune system makes antibodies and uses them to specifically fight certain germs that the body has previously come into contact with. This is also known as an “acquired” (learned) or specific immune response.

Detailed explanation-5: -Because one antibody only recognizes a specific antigen, antibodies that attack cancer cells, for example, do not attack normal cells. This is called the “specificity” of an antibody toward that antigen.

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