Fighting Disease Flashcards
what does the skin act as
a barrier to pathogens
what happens when you skin gets damaged
blood cuts quickly to seal cuts and keep microorganisms out
what do hairs and mucus in your nose do
they trap particles that could contain pathogens
what do cells in your trachea and bronchi do
- they produce mucus
- which traps pathogens
where are the cells in your trachea and bronchi
airways in the lungs
what do other cells that line the trachea and bronchi have and what is it
- they have cilia
- they are hair like structures
what do the cilia in the airways in the lungs do
- they waft mucus up to the back of the throat
- where it can be swallowed
what does the stomach produce and what does it do
- the stomach produces hydrochloric acid
- it kills most of the pathogens that are swallowed
what chemical do the eyes produce and how does it fight disease
- the eyes produce a chemical called lysozyme in the tears
- which kills bacteria on the surface of the eye
what does your body do if pathogens end up in the body despite the physical and chemical barriers
it will trigger the immune system to destroy them
what is the most important part of the immune system
the white blood cells
what is the function of white blood cells
they travel around all of your body patrolling for pathogens
what are b lymphocytes and what do they do
- they are a type of white blood cell that is involved in the specific immune response
- which is the immune response for specific types of pathogens
what are antigens
specific molecules or proteins on the surface pf pathogens
what do b-lymphocytes do when they come across a foreign pathogen
they start to produce proteins called antibodies
