Exam 21: The Immune System: Innate and Adaptive Body Defensives

Which of the following is not a role of activated complement?

An autoimmune disease that severely impairs renal function is _ .

Figure 21.1Using Figure 21.1, match the following: -Constant region.

Activated T cells and macrophages release _ to mobilize immune cells and attract other leukocytes into the area.

Max is bitten by a rattlesnake while on a camping trip. His friends immediately apply ice packs to the bitten area to slow the spread of the protein- based toxin; they then rush him to an emergency facility. What treatment would be given and why?

Figure 21.1Using Figure 21.1, match the following: -Variable region.

Somatic recombination by B cells allows each B cell to form its own unique antibody genes.

Which of the following is not a method by which antibodies work?

Monoclonal antibodies can be specific for several antigenic determinants.

Why are regulatory T cells important to the immune process?

The antibody that becomes bound to mast cells and basophils and causes the cells to release histamine and other chemicals is .

Complement proteins and antibodies coat a microorganism and provide binding sites, enabling macrophages and neutrophils to phagocytize the organism. This phenomenon is termed _ .

Which of the following is not a complement activation pathway?

In clonal selection of B cells, which substance is responsible for determining which cells will eventually become cloned?

Phagocyte mobilization involves .

Immunocompetence .

Elderly people tend to develop cancer more frequently than younger people. Give an explanation for this observation that relates to immune function.

When the white blood cell count is depressed, the classic signs of infection such as redness, heat, and swelling are not manifested. In this case, the nurse should avoid administering aspirin. Explain why.

A(n) is a cell hybrid formed from the fusion of tumor cells and B lymphocytes.

Cancer cells and virus- infected body cells can be killed before activation of adaptive immunity by )