ACN BIO 205 Chapter 1 Part 2

Skin, lysozyme, and phagocytic cells are considered to be

• Part of the adaptive immune system

• Part of the innate immune system

• Not important in the defense against pathogenic microorganisms

• Involve antibodies

The innate immune system

• develops throughout one's life

• is present at birth

• requires previous exposure to antigens

• involves immunoglobulins

Neutrophils AND macrophages are capable of

• the production of immunoglobulins

• mounting an adaptive immune response

• phagocytosis

• oxidative burst

Cytotoxic T cells are directly involved in

• production of immunoglobulins

• helping B cells differentiate

• presenting antigens to B cells

• directly destroying pathogens primarily through apoptosis

B cells mature in the bone-marrow and

• Directly destroy pathogenic cells

• differentiate into plasma cells and secrete immunoglobulins

• help T cells mature

• are predominantly associated with bacterial infections

IgG is heavily involved in

• the genitourinary tract

• the GI tract

• crossing the placenta and providing immunity to the developing fetus

• blood stream infections

Fomites are

• objects that transfer immunoglobulins

• objects that transfer pathogenic organisms

• objects that are found only in hospital settings

• objects that result in vertical transmission from mother to child