Only be expressing TCR until it leaves the thymus and then will express CD4 or CD8

Express neither CD4 or CD8 co-receptors until engagement with MHC occurs

Be expressing both CD4 and CD8 co-receptors before MHC selection occurs

Be expressing either CD4 or CD8 co-receptors to pre-determine MHC specificity

Four

Six

Eight

Two

Inflammation increases the accumulation of leukocytes, fluid, and plasma proteins at the site of infection

Inflammation activates the complement pathway that will clear the infection

Inflammation increases the local accumulation of dendritic cells to collect antigen, and that can then leave the infected area due to chemokines

Inflammation increases the local accumulation of neutrophils, and reduces the amount of fluid, at the site of infection

1: Basophil, 2: Lymphocyte, 3: Basophil, 4: Neutrophil

1: Eosinophil, 2: Lymphocyte, 3: Neutrophil, 4: Basophil

1: Neutrophil, 2: Lymphocyte, 3: Eosinophil, 4: Basophil

1: Neutrophil, 2: Macrophage, 3: Lymphocyte, 4: Basophil

The range of unique antigen receptors associated with lymphocytes

The range of different effector mechanisms that the immune system employs

The range of different immune cells in the immune system

The range of anatomical locations that the immune system is able to access

 Via the proteasome-induced ER pore

 Via the transporter associated with antigen-processing

 Via the ER translocase

 By active transport through endoplasmic pores

B cell

Macrophage

NK cell

T cell