Immune System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what is the immune system? | defense against pathogens
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| what is the first line of defense | skin
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| epidermis | dead outer layer of skin
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| how does the epidermis protect you? | forms a shield against invaders and secretes chemicals that kill potential invadors
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| how many skin cells do you shed a day? | 40-50 thousand
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| as you breathe in, foreign particles and bacteria bump into and stick to what throughout your respiratory system? | mucus
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| what sweeps mucus into the throat for coughing or swallowing? | cilia
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| what are swallowed bacteria broken down by? | incredibly strong stomach acids
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| what is the second line of defense? | white blood cells
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| when do white blood cells attack invaders? | when they get into the body
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| when will white blood cells enter the body's tissues? | if invaders are detected
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| once engulfed the phagocyte breaks the foreign particles apart into organelles called_____? | lysosomes
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| how do white blood cells eat foreign particles | by engulfing them
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| what are t cells sometimes called | natural killer
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| what chemicals do injured cells release | histamines
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| what to histamines begin | inflammatory response
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| what is the third line of defense | anitbodies
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| what are antibodies | proteins that latch onto foreign bacteria
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| each antibody binds only to...... | one specific binding site on the cell wall of bacteria or capsid of virus.
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| what kind of immune system cells can antibodies attach to? | B cells
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| b cells | produce more antibodies that will locate and attach to harmful bacteria
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| what do antibodies do when they bind to bacteria? | tag them so macropahges can come and kill
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| how can white blood cells locate bacteria cells? | when they have antibodies on them
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| t cells | identify bacteria or parts of it and find b cells to help
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| new particles take..... | longer to identify and a person can remain ill until an antibody is made
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| what does it mean to be immune? | bacteria is recognized and antibodies stop you from ever getting sick from it again
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| active immunity | you produce the antibodies
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| vaccine | weakened pathogen put into body to produce immunity
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| passive immunity | you don't produce the antibodies
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| what organ will a mother pass immunities from to her baby during pregnancy? | umbilical cord
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| allergies | immune system mistake harmless foreign particle as serious threat
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| what blocks the effect of histamines? | anti-histamines
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| are antibiotics the same as antibodies? | NO
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| how do most antibiotics work? | interferring with the making of cell wall, proteins, or nucleic acids
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| what can damge good bacteria? | overuse of antibiotics
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| broad spectrum antibiotics | work on many different bacteria
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| a __________ in the bacteria can change the cell wall or internal chemistry so antibiotics can't stop replication | mutation
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| how to misuse antibiotics | not completing prescribed course, using unprescribed antibiotics
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Created by:
edenbreslauer
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