Anatomy and physiology- Immune system Flashcards
1
Q
why do animals need a immune system
A
they are under constant threat of microbial invasion
2
Q
how can microbes invade animals
A
they have access through
intestine
respiratory tract
skin
3
Q
what defends the body against infection
A
-complex network of organs, WBC, proteins (antibodies) and chemicals
-defends the body against infection
4
Q
what is innate immunity
A
-physical barriers (skin, mucous)
-inflammatory response; “hard wired” system for rapid responce
5
Q
what is adaptive immunity
A
-long lasting
-memory cells after exposure to pathogens
6
Q
what things are included in the immune system
A
-lymph nodes
-spleen
-tonsils and adenoids
-thymus
-bone marrow
-skin, mucous membranes
-stomach and bowel
