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35 Cards in this Set

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Compared to blood capillaries, list several characteristics that are shared with lymph capillaries.
1. no basement membrane
2. large diameter
3. have walls of endothelial cells that overlap like shingles
4. are frequently irregular in shape
Most of the lymph returns to the venous circulation by way of the...
thoracic duct
List 4 regions that are drained by the thoracic duct.
1. left side of the head
2. left arm and shoulder
3. regions below diaphragm
4. left side of thorax
List 4 factors regarding lymphnodes.
1. produce antibodies
2. monitor contents of lymph
3. remove debris and pathogens from the lymph
4. act as a way station for cancer cells.
In general, lymphocytes, spend little time in the blood, and have relatively long life spans. TRUR/FALSE
TRUE.
Cells such as lymphocytes may produce proteins called antibodies. TRUE/FALSE
TRUE.
List 4 places where lymphocytes are found.
tonsils/lymph nodes/spleen/thymus gland
Peyers patches are clusters of lymphatic nodules located beneath the epithelial lining of the small intestine. TRUE/FALSE
TRUE.
Areas of the spleen that have large numbers of lymphocytes are known as...
white pulp
The red pulp of the spleen contains large numbers of RBCs. TRUE/FALSE
TRUE
Lymphatic organs are different from lymphatic tissues in that lymphatic organs...
are separated from surrounding tissues by a fibrous capsule and lymphatic tissues are not.
The largest collection of lymphatic tissue is located in the...
spleen
List 4 components of the body's non-specific defenses.
1. the skin
2. complement
3. inflammation
4. interferon
An inflammatory response is triggered when...
mast cells release histamine, serotonin and heparin
The release of interleukin-1 by active macrophages would...
produce a fever
List 4 characteristics of specific defenses.
versatility
tolerance
memory
specificity
Defense of the body against a particular bacteria or virus is provided by...
specific immunity
The first line of cellular defense against pathogens are the...
phagocytes
Neutrophils are considered microphages. TRUE/FALSE
TRUE
Macrophages are derived from...
monocytes
List 4 necessary effects of activating the complement system.
1. destruction of target cell membranes
2. stimulation of inflammation
3. opsonization
4. chemotaxis
The classic pathway of complement fixation occurs when C1 binds to...
an antibody attached to an antigen
Immunity that is present at birth is called...
innate
Active immunity results from the natural exposure to an antigen in the environment. TRUE/FALSE
TRUE
Immunity that results from antibodies that pass the placenta from mother to fetus is called_________immunity.
natural passive
In active immunization, the...
body is deliberately exposed to an antigen
Plasma cells are responsible for the production of antibodies. TRUE/FALSE
TRUE
The cells responsible for cellular immunity are the_______cells.
cytotoxic T cells
B cells are responsible for humoral immunity. TRUE/FALSE
TRUE
The medullary cords of a lymphnodes contain______cells.
B cells
Stem cells that will form B cells and NK cells are found in the ...
bone marrow
Lymphocytes that attack foriegn cells or body cells infected with viruses are_______cells
cytotoxic T cells
The cell that dominates in the cortical region of a lymphnode is the....
T cell
The various classes of immunoglobulins are differentiated on the basis of their...
fixed segments
Immunoglobulins that are single molecules and are mainly resposible for resistance against viruses, bacteria, and bacterial toxins are...
IgG