lymphatic system & immunity Flashcards
a specialized fuild formed in the tissue spaces and transported by lymphatic vessels
lymph
five parts/ structures of the body that make up the lymphatic system
lymph, lymphatic vessels, lymph nodes, thymus, spleen
2 types of vessels that are mircoscopic
Lymphatic & blood capilliaries
describe the movement of flow of lymph
one way
2 terminal vessels of the lymphatic system
right lymphatic and thoracic duct
the largest of the 2 terminal vessels of the lymphatic system ( recieves fluid from about 3/4 of the body)
thoracic duct
lymphatic vessels have a “beaded” appearance caused by _____ that assist in maintaining the flow of lymph
valves
an enlarged pouch-like structure of the lymphatic systme
cisterna chyli
lymph is filtered by these structures
lymph nodes
lymph from the right upper extremity and from the right side of the head, neck and upper torso flows into this
right lymphatic duct
part of the lymphatic system locatedin the mediastinum
thymus
part of the lymphatic system that is important in the maturation of specialized lymphocytes
thymus
T-lymphocytes, specialized lymphocytes that circulate in the spleen, tonsils and lymph nodes are delvoped here
thymus
moderate exercise increses or decreases the immune system
increases
strenuous exercise increases or decreases the immune system
decreases
they help protect against bacteria that may invade tissues in the area around the openings between the nasal & oral cavities
tonsils
the largest lymphoid organ in the body
spleen
the organ holds one pint of blood for future needs
spleen
this organ removes (via filtration & phagocytosis) many bacteria and other foreign substances
spleen
this organ destroys worn out RBC’s
spleen
onces RBC’s are destroyed, this organ salvages the iron found in hemoglobin for future use
spleen
the name for the removal of the spleen
splenctomy
a breastfed infant is receiving an active or passive immunity
passive
a child has just had an inoculation. he has recieved an active or passive immunity
active
2 types of protien molecules that are critical to the immune system functioning effectively
antibodies & complements
these are protein compounds that are normally found in the body; produced to suppress of destroy antigenss
antibodies
3 phagocytes of the immune system
nuetrophils
monocytes
macrocytes
2 types of lymphocyes
t-cells
b-cells
once in the tissues, monocytes develop into these phagocytic cells
macrophages
some of these phagocytes cells are like police officers; they patrol through the tissues to engolf bacteria wherever they find them
Macrophages
Macrophages found in the small air sacs of the lungs are called ____
dust cells
Macrophages found in the spaces between liver cells are called ____
kupffer’s cells
these are the most numerous cells of the immune system
lymphocytes
these are cells responsible for antibody production
lympocytes
these are primitive cells in the bone marrow that can become any type of cell
stem cells
