Term
| Know the difference between the innate/nonspecific and specific defense systems. |
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Definition
| Innate:
SURFACE BARRIERS-
INTERNAL DEFENSES- |
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Term
| List and describe the nonspecific defenses(Surface barriers) |
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Definition
-SKIN:epidermal cells filled with keratin,protects from temps,chemicals,microorganisms.
-pH:acidic 5-6
-STOMACH: secretes HCL;destroys bacteria.
-SALIVA: contain lysozyme--->breaks apart bacteria.
-VAGINA:walls are acidic
-MUCOUS: helps trap microorganisms. |
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Term
| List and describe the nonspecific barriers(internal). |
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Definition
-PHAGOCYTES:BECOME MACROPHAGES THROUGH PHAGOCYTOSIS.
-NEUTROPHILS:GRANULAR LEUKOCYTE;DESTROY BACTERIA;RELEASE DEFENSINS;CAUSE FEEDING FRENZIES.
-NATURAL KILLER CELLS(NK):GRANULAR LEUKOCYTES, NO PHAGOCYTOSIS.
-INFLAMMATION:BODY TISSUES ARE INJURED,HISTAMINE ARE RELEASED. LOCALIZE INJURY/INFECTION;CLEAR AREA OF DEBRIS;STARTS REPAIR PROCESS. |
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Term
| LIST AND DESCRIBE THE FOUR SIGNS OF INFLAMMATION |
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Definition
-REDNESS:HYPEREMIA,BLOOD AT INJURED SITE.
-HEAT:SEE ABOVE
-EDEMA/SWELLING:CAPALLARIES BREAK&LEAK FLUID.
-PAIN:INJURED NERVES AND FLUID BUILD-UP ON NERVES. |
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Term
| DESCRIBE THE ACTION OF INTERFERON AND COMPLEMENT IN DEFENSE OF THE BODY. |
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Definition
-INTERFERON:SMALL PROTEIN SECRETIONS FROM VIRUSES TO PROTECT HEALTHY CELLS. "INTERFERE" WITH VIRAL REPLICATION.
-COMPLEMENT:GROUP OF AT LEAST 20 PLASM PROTEINS THAT NORMALLY CIRCULATE INT HE BLOOD IN AN INACTIVE STATE.MAJOR MECHANISM TO DESTROY FOREIGN SUBSTANCES IN THE BODY. |
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