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sciences (the immune system (the 2 line of defense (white blood cell:they…
sciences
the immune system
Skin
the outer layer
cilia and mucus
when you breath the the dirt molecules become stuck to the cilia
saliva
the saliva contains chemical particles thta brewakdown the bacteria
stocmach acid
the bacteria is broken down by the strong stomach acid
the 2 line of defense
white blood cell:they enter the body invader
phatogens:this white blood cells eat the invader
t cells:they recornize cancer cells
the inflamatory response:they send chemical called histamines that begin the inflamatorry response
interferon:interferon are chemical that are send by viruses cells
3 line of defense
antibodies:they kill the virus after the 1 and 2 line of defense
excretory system:
organs that are the excratory system:
skin
lung
the lung enhale H20 and exhale C02
large intestine
the skin excretes salt urea and cools your body.
the food passse trought thwe large intestine and the nutrients are absorbed.
liver
turns nitrogen into urea
kidney
Removes nitrogenous wastes (urea),Removes water and salts, Regulation of Blood Pressure, volume
and pH
nephron
each kidney has about 1 million tiny neprhons
urethra
the urethra connects the uranary bladder to the outside for the removal of urine from the body
bladder
the bladder stores urine allowing urination to be cntrolled