Micro
Self-antigens are coded by a group of genes located on chromosome ____ and form the MHC (major histocompatibility complex).
6
Which of the following cells is a granulocyte?
Basophil
Which of the following is a systemic autoimmune disease?
Rheumatoid arthritis
The highly specialized structure that protects the fetus from microorganisms is the __.
placenta
The neonatal infection referred to as “sticky eye” is caused by __.
Staphylococcus
The antibody found in body secretions is __.
IgA
Immunity that is a result of an actual infection is called __.
naturally acquired active immunity
Which of the following is not part of the second line of defense?
pH of the skin
Congenital CMV infections are caused by __.
cytomegalovirus
Staphylococcal scalded skin syndrome is most common in __.
infants
An antibody is __
a protein produced by plasma cells.
A substance capable of raising the body temperature is __
pyrogen
Cells infected with a virus produce glycoproteins that interfere with viral replication and impede its spread; these glycoproteins are called __.
interferons
A fetus infected with rubella virus produces which of the following antibodies that can then be detected in the umbilical cord?
IgM
Rheumatic fever is usually a complication of a(n) __________ infection.
Streptococcus pyogenes
Which of the following cell types secretes antibodies?
Plasma cells
When an organ or tissue is transplanted between genetically different individuals it is called a(n):
allograft
The first line of defense that prevents microbes from entering the body includes __.
skin
Saddle nose is characteristic of which of the following congenital infections?
Syphilis
Infectious mononucleosis most often occurs in __.
young adults
Which of the following provide defense against viral infections?
Interferons
Which of the following blood types cannot receive a blood transfusion from type O blood type?
All blood types can
__________ is a pentamer and the largest of the immunoglobulins.
IgM
The type of antibody that can cross the placenta is __.
IgG
Almost half of all the STIs diagnosed in the United States are among __.
young adults