Immunity biology olympiad Flashcards
What do tears contain?
antibodies and lysozymes
What do ears produce?
wax
Name some areas where ciliated mucous membranes are found
gut
genital areas
anus
ears
nose
respiratory passages
What is the role of goblet cells?
produce mucus
Where are goblet cells found?
In the epithelial tissue
What is the line of defence in the respiratory tract?
ciliated cells waft the mucus to the top of the trachea, the mucus is swallowed and passes into the stomach acid
What cells does the outer layer of epidermis consist of?
Keratinocytes
Are keratinocytes dead or alive?
dead
What does the skin flora consist of?
commensal bacteria which competes with pathogenic bacteria
What is commensal bacteria?
Bacteria that protects against pathogens
Are lysozymes present in the saliva?
yes
Is the first line of defence specific or non specific?
non specific
Is the first line of defence an innate immunity or adaptive immunity?
Innate immunity
What happens during the first line of defence?
the pathogen tries to enter the body through a hole
What is the first line of defence provided by?
Physical barriers