Exam 1: Cells and Organs of the Immune System

The role of microfold (M) cells is to:

The granules in polymorphonuclear leukocytes (PMNs) play which of the following roles in the immune response?

Hematopoiesis is the:

The main purpose of diapedesis is to:

All T cells express which of the following CD markers?

In positive selection, thymocytes undergo apoptosis when: I-They do not interact with MHC molecules II-They bind to MHC molecules with high affinity III-They bind to MHC molecules with low affinity

Which cell type contains granules that are specific for killing parasites?

Monocytes are primarily located in the:

The main function of _______________ is to ingest and destroy bacteria.

The __________________ serves as a filter to trap infections in the tissues.

Development of which cell type is impaired in DiGeorge syndrome? I- T cells II- B cells III- NK cells

Which of the following cells is important for killing virus-infected cells?

Which of the following congenital disorders results in defects in the thymus? I- Nezelof Syndrome II- DiGeorge Syndrome III- Leukocyte Adhesion Deficiency

Monocytes enter tissue and develop into:

B cells that are actively proliferating are located in the ________________ of the lymph node.

What role does the T helper 1 (Th1) subset play in the immune response?

Phagocytosis is the main function of which of the following cell types?

Aged red blood cells are destroyed by macrophages in the:

Immature thymocytes begin their initial cycle of proliferation in:

As a result of leukocyte adhesion deficiency, white blood cells cannot: