Quiz on the Immune System

Individuals suffering from DiGeorge syndrome, have lower circulating levels of ___________.

• T cells

• NK cells

• T helper cells

• B cells

Peyer's patches, that are nodules of lymphoid follicles is found in ____________ of the gut.

• Inductive sites

• Submucosal layer

• Lamina propria

• Mucosal epithelium

Which of the following regions of the lymph node is also called as the thymus-dependent area?

• Medulla

• Cortex

• Marginal zone

• Paracortex

What is the function of M cells in the GALT?

• Produce and secrete antibodies

• Mount an immune response

• Phagocytose and clear pathogens

• Endocytose and sample foreign antigens

What is the function of Langerhans cells in CALT?

• Lymphocytes in dermal layer

• DCs in dermal layer

• DCs in epidermal layer

• Lymphocytes in epidermal layer

What type of cells are primarily found in the cortex of lymph nodes?

• B cells

• T cells

• Dendritic cells

• Macrophages

What is the role of the lymphatic system?

• Filter pathogens from blood

• Produce red blood cells

• Collect interstitial fluid

• Transport oxygen

What is the primary function of the spleen?

• Maturation of T cells

• Filtering blood

• Storing platelets

• Producing lymphocytes

Which type of lymphoid tissue is found in the gut?

• Bone marrow

• MALT

• CALT

• Thymus

Which of the following is NOT a secondary lymphoid organ/tissue?

• None of the given

• Tonsils

• Appendix

• Spleen