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Exam 11: Body Defences

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Question 51

True/False

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Hair and nails are both special keratinized products.

A) True
B) False

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Question 52

Multiple Choice

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Match the type of T cell, labelled a. through e., with its characteristics. (Options may be used more than once or not at all.) -lease perforin

A) applies to cytotoxic T cells
B) applies to helper T cells
C) applies to suppressor T cells
D) applies to both helper T and suppressor T cells
E) applies to all three types of T cells

F) B) and E)
G) A) and E)

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Question 53

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____________________ refers to the body's ability to resist or eliminate potentially harmful foreign materials or abnormal cells.

Fever results from neurological activity in the cerebellum.

Match the condition, labelled a. through g., with the characteristic. -helper T's destroyed by viral invasion

Match the condition, labelled a. through g., with the characteristic. -hereditary condition in which both B and T cells are lacking

Which of these statements describes diapedesis

____________________ is the process by which a substance separates from a solution.

Most of the progeny of an activated B-cell clone differentiate into ____________________, which produce antibodies, and ____________________, which remain dormant and expand the specific clone.

The ____________________ of the complement system imbeds itself in the microbial membrane surface, thereby bringing about lysis of the victim cell.

What is the most abundant immunoglobulin in the blood

By ____________________, cancer cells spread to other parts of the body.

Cancer cells may evade the immune system by inducing committed T cells into apoptosis.

Match the condition, labelled a. through g., with the characteristic. -damage of normal cells brought on by formation of antigen-antibody complexes

Match the antibody type, labelled a. through e., with the correct characteristic. -found in secretions of digestive, respiratory, and genitourinary systems, and in milk and tears

Clumping of foreign cells brought about by the formation of antigen-antibody complexes is known as ____________________.

____________________ refers to the chemical attraction of leukocytes to the site of invasion.

Which of the following is NOT characteristic of immediate hypersensitivity

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) -present antigen to suppressor T cells

Discuss the various ways by which a cancer cell might elude the immune system, thus causing a clinical manifestation.