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ch. 24 bio
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pathogen
any diseas causing organism
resistance
ability to not get sick
susceptibility
able to get sick
nonspecific resistance
inate immunity; works against any pathogen; ex: skin
immunity
works against particular pathogen; lymphatic system
blood
55% water and 45% cells
red blood cells
erythrocytes; carry oxygen
white blood cells
leukocytes; function in immune respone
platelets
thrombocytes; clot blood
neutrophils
phagocytosis and digest marked pathogens
phagocytosis
cell eating
pus
an accumalation of dead cells
eosinophils
allergic reaction and reject parasistc worms
basophils
release histamine for inflimation
monocytes
phagocytosis and digest marked pathogens
lymphocytes
mark pathogens for destruction; t cels b cells
different numbers of the different WBCs indicate
different diseases
skin
forms a barrier to most micro organisms; has antimicriobial chemicals
sweat
very salty and midly acidic
mucus membranes
trap pathogens; cilia sweeps pathogens out
stomach acid
low pH kills most pathogens
saliva
very little salt; hypotonic
tears
very salty; hypertonic
bladder
acidic urine; flow of urine washes out pathogens
vagina
acidic pH
complement system
26 different proteins working together to poke a hole in marked bacteria
natural killer cells
kill tumors
inflamation
body raises temp of an injured tissue; local ; caused by increased blood flow
fever
body can defend against specific disease causing organisims
immunity (list)
1. will be specific to one pathogen
2. wil remeber pathogen next time
3. secondary response is faster next time
when they do organ transplants
they try to match the antigens between the donor and recipient
new legislation is trying to make organs available
nationwide depending on who needs the organ most
Author
danilamotte
ID
188482
Card Set
ch. 24 bio
Description
ch.24
Updated
2012-12-10T18:28:40Z
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