Lymphatic System Flashcards
Where lymphocytes are produced and mature
Primary lymphoid organs
Where lymphocytes are activated
Secondary lymphoid organs
A swollen lymph node
Buboe
True or false. It is beneficial to have fewer efferent lymphatic vessels compared to afferent in order to slow the movement of lymph
True
Work to filter out lymph and remove waste, toxins, and excess fluid from the body
Lymph nodes
Filters the blood, removing old blood and platelets
Spleen
A site for immune cell development and antibody production, particularly in response to blood-borne antigens in the spleen
White pulp
Holds many sinusoids that filter out iron in the blood, and allows blood to move through slowly
Red pulp
Filter and trap pathogens from the nose or mouth
Tonsils
Crucial for intestinal immunity, acting as a sentinel for antigens and microbes in the intestinal lumen, initiating immune responses and maintaining intestinal homeostasis
(Aggregated lymphoid nodules)
Part of small intestine
Peyer’s patches
Widely unknown, may help to fight infections
Appendix
Mucus
Associated
Lymphoid
Tissues
Protect body from pathogens
MALT
Nonspecific; Surface barriers, internal defenses
Born with these protective mechanisms
Innate defense
Specific; Lock and key recognition for foreign molecules
Major characteristics - Memory, specificity, self tolerance
Adaptive defense
Anything capable of provoking an immune response
Antigens
Cells associated with cellular immunity
T cells
Cells associated with humoral or antibody mediated immunity
B cells
