IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

LYMPHATIC AND IMMUNE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cells release antibodies that disable pathogens?
A
B-cells
B
T-cells
C
natural killer cells
D
phagocytes
Explanation: 

Detailed explanation-1: -There are two main types of B-cells: plasma cells and memory cells . Both types help protect you from infection and disease. Plasma cells: Plasma cells release antibodies in response to antigens.

Detailed explanation-2: -B cells create antibodies. B lymphocytes, also called B cells, create a type of protein called an antibody. These antibodies bind to pathogens or to foreign substances, such as toxins, to neutralize them. For example, an antibody can bind to a virus, which prevents it from entering a normal cell and causing infection.

Detailed explanation-3: -B cells secrete antibodies that contribute to tissue injury via multiple mechanisms. In addition, B cells contribute to disease pathogenesis in autoimmunity and alloimmunity by presenting antigens as well as providing costimulation and cytokines to T cells.

Detailed explanation-4: -By producing antibodies, B cells are main players in the protective immune response against pathogenic infections. In response to antigens, they mature into antibody-producing plasma cells or into memory B cells, which can quickly be reactivated following secondary challenge.

Detailed explanation-5: -In antibody responses, B cells are activated to secrete antibodies, which are proteins called immunoglobulins.

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