Chapter 22 Assignment

Steps in antigen presentation include which of these?

Antigen presentation includes all of these steps.

Which of the following is true of both lymphatic capillaries and blood capillaries?

Both types are composed of endothelium.

How is lymph collected from the right leg introduced back into circulation?

The lymph from this region of the body re-enters circulation through the thoracic duct.

Which of these statements about lymphocytes is FALSE?

They are phagocytic.

Which of these is NOT a property of lymphatic capillaries?

They are smaller than blood capillaries.

Different mechanisms of cytoxoxic T cell destruction include all of the following EXCEPT __________.

activation of CD4 marker response to antigen presentation

The human body contains over 75 trillion cells, yet under normal conditions, the T cells only attack specific cells. Which of the following is NOT a trait associated with T cells?

antibody production

Immunity that results from vaccination against influenza is classified as __________.

artificially acquired active immunity

What is the blue structure indicated by the red arrow?

class I MHC

The lymphocytes that enter tissues and directly attack antigens are __________ cells.

cytotoxic T

Which class of T lymphocyte is killed by the AIDS virus?

helper T

Which of the following is mismatched?

innate immunity - B cells

Which of the following descriptions is NOT a characteristic of adaptive immunity?

intolerance

Into which blood vessel will lymph flow if it starts at the red arrow?

left subclavian vein

Which of these is NOT a lymphoid organ?

liver

The lymphoid tissue of the spleen ("white pulp") contains many __________.

lymphocytes

Which cell type is essential to the immune response?

lymphocytes

What is the type of immunity one acquires through contracting a disease such as chicken pox from another infected person?

naturally acquired active immunity

Innate defenses include all of the following EXCEPT __________.

production of antibodies

Which of these body regions does NOT drain its lymph into the thoracic duct?

right arm

Which of the labels indicates a structure through which lymph flows?

the small, dark structure labeled A

Which label or labels indicate(s) the antigen binding site?

the two sites labeled with the letter A

Autoimmune disorders result from a failure of what property of immunity?

tolerance