Serology chap 2 Flashcards
(29 cards)
Part
In sweat
Sebacous glands
Ph
Unbroken skin & mucosal membrane Lactic acid
Fatty acids
5.6
Induce turbulence
Contains antimicrobial substances
Trap particle
Part / system
Nasal hair
Nasa secretions
Mucous secretions
Respiratory system
Generally sterile due to low ph
Stomach
Contain few bacteria & as distal end of ileum is reached flora increases
Si
Enormous numbers of microorganisms
% of fecal dry weight
Colon
50-60
Bactericidal in male
Spermine & zinc
Gut commensals produce
Colicins
Movement through blood bessels
Diapedesis
Chemical messengers
Chemotaxins
Help make neutrophil sticky & enhance adherence
Selectins
Margilation
Extravisasion
Adherence
Diapedesis
Neutralize mast cell and basophil
Eosinophil
Induce and maintain hypersensitivity rxn
Basophil
Vasocative amine contracts smooth muscle
Histamine
Lack hydrolytic enzymes but peroxidase is oresent
Basohpil
Resmebles bashophil
Mast cells
What type of macrophage is in steady state : detects presence of microbe
; growth & remodeling of organs
Resident macrophage
What macrophage develop from circulatinng monocytes
Recruited
Phagocytise ag & prensent it to helper T cell
Dendritic cell
Produce receptors specific for diverse ag
Lympho
Key mediator of adaptive immunity
Lymphocytes
Express receptor but not perform function
Naive lympho
Location of b lymph
Bone marrow
Only cells produce Ab
B lympho
