APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Antigens are any substance that the immune system can recognize and that can thus stimulate an immune response. (B lymphocytes) are white blood cells that produce antibodies specific to the antigen that stimulated their production.

Detailed explanation-2: -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-3: -Foreign antigens originate from outside the body. Examples include parts of or substances produced by viruses or microorganisms (such as bacteria and protozoa), as well as substances in snake venom, certain proteins in foods, and components of serum and red blood cells from other individuals.