Immune Flashcards
Def of parasite:
organism that obtains nutrients by living on a different species organism
Def of pathogen?
Organism that causes disease in another organism.
innate vs acquired
built in vs developed mechanisms
First physical barrier?
innate defense mechanisms
removal of ectoparasites (birds):
dust baths
pectinate claw
allopreening
chemical barriers are:
innate defense mechanisms (e.g. anti microbial slime in fish, host defense peptides, and ph.
Phagocytosis?
Innate cellular defense mechanism (engulfment of a particle by a phagocyte or a unicellular eukaryote
many innate immune cells in vertebrates come from:
bone marrow
Granulocytes?
common phagocytes involved in innate immunity. a type of leukocyte (white blood cell)
Bilaterian invertebrates use what for phagocytosis?
hemocytes.
Many immune cells derive from the?
mesoderm
Cnidarians produce antimicrobial enzymes in…
ectodermal and endodermal layers
Archaeocytes are in…
Poriferans
Amoebocytes are in…
cnidarians, annelids, mollusks, and others
What is a key component of innate immune response?
Inflammation
