Exam 10: Preventing Infection at Mucosal Surfaces

Describe four actions of effector CD4 T_H2 cells that provide protection from infections by intestinal helminths and lead to expulsion of the parasites from the gastrointestinal tract.

which anatomical location are Peyer's patches?

The dominant immunoglobulin synthesized at mucosal surfaces is _____.

All of the following are part of Waldeyer's ring except _____.

Identify three locations where secretory IgA can bind to antigens in mucosal tissue,and for each give the fate of the antigen upon binding to secretory IgA.

_____ assists in the differentiation of blood-derived monocytes into intestinal macrophages.

Which of the following is not an activity associated with secretory IgA and secretory IgM in mucosal secretions?

_____ microorganisms are microbes that colonize mucosal surfaces but under normal circumstances do not cause disease.

IgA proteases produced by Streptococcus pneumoniae mediate all of the following effects except _____.

Because the mucosae _____,this tissue is predisposed to infection.

Explain how secondary lymphoid tissues of the mucosa are (A)similar to and (B)different from secondary lymphoid tissues elsewhere in the body (the systemic immune system).

Unlike secreted mucins,membrane mucins _____.

Intracytoplasmic bacteria in enterocytes of the gastrointestinal tract are detected by _____.

Identify ways in which intestinal macrophages are (A)similar to and (B)different from macrophages in non-mucosal tissues.

The cytokine influencing eosinophil development and function during helminth infections is _____.

_____ makes up the membranes of connective tissue that help to anchor the gastrointestinal tract and hold it in place.

Laboratory animals reared in gnotobiotic conditions _____.

Secretory IgA binds to pathogens in all of the following locations except the _____.

The large population of microbes that contribute to the gut microbiota and have an important role in food processing are called _____.