non-specific defence system Flashcards
what is the job of the non-specific defence system?
to prevent pathogens from entering the body
skin forms a protective ____ covering body?
skin forms a protective layer covering body
what does the skin produce?
an oily substance called sebum which kills bacteria
when the skin is damage, pathogens could enter the body, what does the skin do to prevent this?
the skin scabs over
____ and _____ in nose trap pathogens before they can enter the breathing system?
hair and mucus in nose trap pathogens before they can enter the breathing system
trachea and bronchi secrete ____ to trap pathogens?
trachea and bronchi secrete mucus to trap pathogens
trachea and bronchi are covered with tiny hairs called ____?
trachea and bronchi are covered with tiny hairs called cilia
cilia waft ____ to back of throat where it is swallowed into stomach?
cilia waft mucus to back of throat where it is swallowed into stomach
stomach produces hydrochloric acid, what does this do?
kills pathogens before they can travel further