Contains lymphocytes and macrophages that clean lymph; comprise tonsils and appendix
What is lymphatic nodules
100
where B cells are located
What is lymphatic nodules/ follicles
100
site of differentiation of T cells
What is thymus
100
repeated exposure of the skin to certain chemicals, eventually the foreign substance activates T cells, the T cells and macrophages release chemical factors, which cause eruptions and inflammation of the skin
What is delayed reaction allergy
100
Lymphatic vessels have walls similar to those of ________.
What are veins?
200
filter harmful particles from lymph before returning it to the blood and monitor body fluids; small and bean-shaped
What is lymph nodes
200
site of differentiation of B cells
What is red bone marrow
200
where do T cells originate
What is red bone marrow
200
an inherited ability to overproduce IgE, commonly called an allergy
What is immediate reaction allergy
200
The aggregations of lymph nodules found within the mucosal lining of the small intestines are called ________________.
What is Peyer's patch?
300
major locations of lymph nodes; give one region and one cavity
What is cervical, axillary, supratrochlear, and inguinal regions; pelvic, abdominal, and thoracic cavities
300
B cells differentiate into what?
What is plasma cells or memory B cells
300
How do T cells attack foreign, antigen bearing cells
What is direct cell-to-cell contact; cell-mediated immunity
300
An antigen that triggers allergic responses
What is allergen
300
Where does the right lymphatic duct receive its lymph from?
What is the right thorax?
400
bilobed gland in the mediastinum; houses lymphocytes and secretes hormones called thymosins
What is thymus
400
List one purpose of B cells
What is to attack pathogens and differentiate into plasma cells that secrete antibodies
400
four types of specialized T cells
What is helper T cell, Supressor T cell, Killer T cell, and Memory T Cell
400
What happens in an initial exposure to an allergen?
What is IgE attaches to the cell membranes of widely distributed mast cells and basophils
400
Where does the left lymphatic duct receive its lymph from?
What is the cisterna chlyi in the abdomen?
500
largest lymphatic organ, contains white pulp and red pulp tissue; houses macrophages that remove foreign particles and cell debris
What is spleen
500
How does a B cell become activated?
What is its antigen receptor encounters its matching antigen, but most B cells need helper T cells for activation
500
functions of four types of specialized T cells (list two)
What is Suppressor: stop the work of helper T cells when not needed; Helper: signals others to be produce antibodies; Memory: provide for future immune protection; Killer: recognizes and combines with nonself antigens to release perforin that destroys cells
500
give the purpose of allergy mediators and a few examples
What is dilate arterioles and increase vascular permeability; histamine and leukotrienes
500
Where do you find lymph nodes?
What is groups or chains along the paths of the larger lymphatic vessels throughout the body?