PATHOLOGY

Detailed explanation-1: -An antibody is a protein produced by your immune system to attack and fight off these antigens.

Detailed explanation-2: -Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). When an antigen binds to the B-cell surface, it stimulates the B cell to divide and mature into a group of identical cells called a clone.

Detailed explanation-3: -Defensins are also the most abundant protein type in neutrophils (see below), which use them to kill phagocytosed pathogens.

Detailed explanation-4: -B-cells protect you from infection by making proteins called antibodies. B-cells are a type of white blood cell called lymphocytes. When your immune system detects antigens-markers that indicate a threat like a bacteria or virus has entered your body-your B-cells produce antibodies to fight the invader.

Detailed explanation-5: -Humoral immunity is also called antibody-mediated immunity. With assistance from helper T cells, B cells will differentiate into plasma B cells that can produce antibodies against a specific antigen.