Humoral immunity

Humoral immunity is the aspect of the immune system that refers to antibody production and the functions of antibodies that are found in blood serum. It is in contrast to cell-mediated immunity, which refers to immunity associated with cells. Both the innate immune system and the acquired or adaptive immune system contain humoral and cellular components.

B cells are a major component of the humoral immunity system.

See also

• Immune system

Learn more

• Video: Types of immune responses: Innate and adaptive, humoral vs. cell-mediated by Khan Academy

antibodies Antibody/immunoglobulin refers to any of a large number of specific proteins produced by B cells that act against an antigen in an immune response.

antibodies Antibody/immunoglobulin refers to any of a large number of specific proteins produced by B cells that act against an antigen in an immune response.

antibodies Antibody/immunoglobulin refers to any of a large number of specific proteins produced by B cells that act against an antigen in an immune response.

The clear yellowish fluid that remains from blood plasma after clotting factors have been removed by clot formation. (Blood plasma is simply blood that has had its blood cells removed.)

serum The clear yellowish fluid that remains from blood plasma after clotting factors have been removed by clot formation. (Blood plasma is simply blood that has had its blood cells removed.)