Exam 10: The Blood Vessels and Blood Pressure

Vasodilation of the blood vessels supplying a tissue increases the flow of blood to that area.

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

A(n) ____________________ is a disease-producing organism.

A(n) ____________________ is a walled-off structure within which indestructible offending material is imprisoned.

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

Match the type of T cell, labelled a. through e., with its characteristics. (Options may be used more than once or not at all.) 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 -destroy host cells bearing foreign antigen

The arm regions of an antibody determine with what antigen the antibody can bind, whereas the tail portion determines the destiny of the antibody once it is bound.

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -secrete interleukin 1

Match the antibody type, labelled a. through e., with the correct characteristic. a.IgM b.IgE c.IgG d.IgA e.IgD -a mediator in asthma and hives

When an antigen gains entry to the body, it stimulates all of the B cells to produce antibodies specific against it.

Which of the following does NOT apply to macrophages?

Endogenous pyrogen (EP), leukocyte endogenous mediator (LEM), and interleukin 1 (IL-1) are all believed to be identical or closely related chemical mediators.

____________________ against cancer cells involves an interplay among cytotoxic T cells, NK cells, macrophages, and interferon.

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -are the most abundant cell type in the skin

The ____________________ theory proposes that a diversity of lymphocytes is produced during development, each preprogrammed to synthesize an antibody against only one of an almost limitless variety of antigens.

Antibodies are not able to directly destroy invading organisms.

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -can secrete enzymes or toxins that are injurious to host cells

Which of the following is NOT attributable to the immune defence system?

Cytotoxic T cells are one of several kinds of regulatory T cells.

Provide a mechanistic description of the functions of the compliment system.