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________ can be diagnosed using blood tests that measure for specific diseases.

Autoimmune disorders

The ________ are responsible for filtering foreign substances and providing the space for antigen reactions.

secondary organs

The ________ is made up of a complex group of cells and organs found throughout the body.

immune system

________ factor (RF) in the blood is often indicative of ________ arthritis.

Rheumatoid

A(n) ________ will indicate the formation of antibodies on the red blood cell.

Coombs test

The cells of the immune system include four types of ________: polymorphonuclear leukocytes, monocytes, macrophages, and lymphocytes.

leukocytes

A(n) ________ can also indicate the presence of maternal antibodies against the fetal blood type, as occurs in erythroblastosis fetalis.

Coombs test

________, the major cells of the immune system, arise and develop in the primary organs.

Lymphocytes

The cells of the immune system include four types of leukocytes:

polymorphonuclear leukocytes, monocytes, macrophages, and lymphocytes

Having the disease (such as mumps)

Active natural immunity

Receiving a vaccination (such as MMR)

Active artificial immunity

Antibodies produced by the body itself or received from maternal–fetus transmission

Passive natural immunity

Injection of antibodies

Passive artificial immunity