1)SKIN: made up of dead cell containing a protein : keratin 2)NOSTRILS : contain hairs that traps dust3)BLOOD CLOT4)HCL IN STOMACH
MACROPHAGES
they swallow the intruder whole and trap it inside a membrane ..then the enemy is broken down by enzymes and is killed
they cause inflammation by ordering the blood vessels to release water into the battlefield so fighting becomes easier
they release proteins called neutrophiles. they blood and move to the battle field and fight furiously they generate barriers and kill the bacteria . they r so that they can kill healthy cells..so that they commit suicide after 5 days to prevent themselves causing much damage
they are especially good at numbing up the bacteria which antibodies have attached to
the dendritic cell gets active and starts to collect samples from the enemies and rip them into pieces and present the parts on their outer layer
it is looking for a helper T-cell that combines the parts of the intruders which the dendritic cell has presented on its membrane
when it finds one,the helper T-cell is activated and quickly duplicates its self thousands of times
some become memory cells which will stay in blood to make you immune to this kind of disease
Some travel to the field of the battle to help out
FIRST LINE OF DEFENSE
helper T-cells stimulate them and tell them "work harder we still need you , don't die" this also ensures that the factory dies if the infection is over so the body don't hurt itself