Ch 22 Lymphatic System – Flashcards

The lymphatic system is composed of all of the following, except A) lymphatic vessels. B) the thyroid gland. C) the spleen. D) lymph nodes. E) lymph

The lymphatic system does all of the following, except that it A) helps maintain normal blood volume. B) transports gases to and away from lymph nodes. C) eliminates variations in the composition of interstitial fluid. D) transports lipids from the digestive tract. E) fights infection.

Compared to blood capillaries, lymph capillaries exhibit all of the following, except that they A) have no basement membrane. B) are larger in diameter. C) have walls of endothelial cells that overlap like shingles. D) are not held in place by a loose connective-tissue framework. E) are frequently irregular in shape.

Lymph nodes do all of the following, except that they A) produce antibodies. B) monitor the contents of lymph. C) remove debris and pathogens from the lymph. D) act as a "way station" for cancer cells. E) remove excess nutrients from the lymph.

All of the following are true of the thymus gland, except that it A) activates B cells. B) reaches its greatest size relative to body size during the first to second year of life. C) undergoes involution after puberty. D) produces T cells. E) lies behind the sternum in the anterior mediastinum.

In general, lymphocytes

The cells known as lymphocytes

Lymphocytes are located in each of the following tissues or organs, except the A) tonsils. B) spleen. C) lymph nodes. D) brain. E) thymus gland.

The term lymphadenopathy refers to

Areas of the spleen that contain large numbers of lymphocytes are known as

The "red pulp" of the spleen contains large numbers of

The "white pulp" of the spleen is composed of

Each of the following is a physical barrier to infection, except A) body hair. B) epithelium. C) secretions. D) complement. E) basement membranes.

The release of interleukin-1 by active macrophages would

Characteristics of specific defenses include

Defense of the body against a particular bacteria or virus is provided by

The first line of cellular defense against pathogens are the

Microphages include

All of the various macrophages are derived from

The effects of activating the complement system include all of the following, except A) destruction of target cell membranes. B) stimulation of inflammation. C) deactivation of the immune response. D) opsonization. E) chemotaxis.

The classic pathway of complement fixation occurs when C1 binds to

Immunity that is genetically determined and present at birth is called _____ immunity.

Immunity that results from the natural exposure to an antigen in the environment is called _____ immunity.

Immunity that results from antibodies that pass the placenta from mother to fetus is called _____ immunity.

In active immunization, the

The cells responsible for the production of circulating antibodies are _____ cells.

The cells responsible for cellular immunity are the _____ cells.

The cells responsible for humoral immunity are the _____ cells.

The medullary cords of a lymph node contain _____ cells.

Stem cells that will form B cells and NK cells are found in the

Lymphocytes that attack foreign cells or body cells infected with viruses are _____ cells.

Cells that help regulate the immune response are _____ cells.

Suppressor T cells act to

Stem cells that will form T cells are modified int the