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

188482

Card Set

ch. 24 bio

Description

ch.24

Updated

2012-12-10T18:28:40Z

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