Immune Flashcards
(26 cards)
Pathogens
can be multi-cellular or single celled organisms
Where do pathogens live?
lives on or in a host organism and gets its nutrients from or at the expense of its host
Infection can then spread via:
circulatory system and lymphatic system
how are the circulatory system and lymphatic system the same?
they are both made up vessels
the points of entry for a pathogen include:
Digestive system
Respiratory system
Urogenital tract
Breaks in skin
the lymphatic system
Plays an active role in defending the body from pathogens
What do adenoids stores?
B-cells , found on the roof of the mouth
What happens in the thymus?
t-cells mature
Bone marrow is the _____ of all cells
Mother
Payer’s patch function
monitors the bacteria population, stores B and T cells
What are Three Lines of Defense?
Innate Barrier Defenses
Innate Non-specific Cellular Defenses
Acquired Cellular Defenses (most important)
Where is hyaluronic found?
In skin
What do natural killer cells attack?
your own body cells
Cytokines is a way to…
recruit immune cells
What do phagocytes attack?
in-jest foreign particles and cellular debris Ex: MNDE
Antimicrobial Proteins -Enhance the innate defenses by:
Directly attacking microorganisms
Interferons are
naturally occurring proteins
What are the 3 out comes of Interferons?
stop protein synthesis
kill apoptosis
activate immune cells
Complement system
System of inactive proteins produced by liver circulating in blood
activated proteins destroy pathogen plasma membranes
Inflammatory Response
An inflammatory response is triggered when mast cells release granules containing HISTAMINE and HEPARIN.
What are cytokines?
are cell signaling molecules that aid cell to cell communication
What do T and B cells provide?
acquired (active) immunity
B cells
are responsible for pathogens outside of cells
release antibodies
What are the two cell types that b-cells produce?
Plasma cells (continue) and Memory Cells (sleep) encounter a pathogen
