MEDICAL ENTRANCE TIPS

WHAT DO WHITE BLOOD CELLS DO?



YOU CAN SEE THAT BLOOD, SO NECESSARY FOR LIFE, IS NOT A SIMPLE THING.MANY DIFFERENT SUBSTANCE HAVE THEIR SPECIAL WORK AND
IMPORTANCE.
ALTHOUGH THE RED CELLS ARE BY FAR MORE NUMEROUS IN THE BLOOD AND GIVE BLOOD ITS COLOR,THE WHITE BLOOD CELLS HAVE A CRITICAL ROLE, TOO. THE WHITE BLOOD CELLS ARE CALLED LEUCOCYTES.
THE MOST COMMON LEUCOCYTES ARE GRANULAR CELLS.THESE CELLS PASS IN AND OUT OF THE BLOOD TO THE SPOT WHERE GERMS OR INJURED TISSUE HAVE COLLECTED.SOME OF THESE CELLS,CALLED NEUTROPHILS, TAKE BACTERIA INTO THEMSELVES AND DESTROY THEM.THEY ALSO GIVE OFF SUBSTANCES WHICH DIGEST AND SOFTEN DEAD TISSUE AND FORM PUS.
OTHER WHITE CELLS IN THE BLOOD ARE CALLED LYMPHOCYTES. THE LYMPHOCYTES OFTEN INCREASE IN NUMBERS IN A PART OF THE BODY WHERE INFECTION HAS CONTINUED FOR MORE THAN ASHORT TIME.THIS IS A PART OF THE BODY’SPROCESS FOR FIGHTING INFECTIONS,SO YOU CAN SEE THEIR JOB IS QUITE IMPORTANT.
STILLOTHER WHITE BLOOD CELLS ARE THE MONOCYTES.THESE CELLS, TOGETHER WITH OTHER CELLS IN THE TISSUES,HAVE THE ABILITY TO TAKE UP PIECES OF DEAD METERIAL. THEY CAN ALSO SURROUND MATERIAL SUCH US DIRT, AND KEEP IT FROM COMING IN CONTACT WITH HEALTHY TISSUE CELLS.
BY THE WAY, EVEN THOUGH WHITE BLOOD CELLS ARE SO NECESSARY TO THE BODY, TOO MANY OF THEM ARE NOT GOOD EITHER. WHEN TOO MANY WHITE BLOOD CELLS ARE FORMED, AND THEY DO NOT GROW INTO THE HEALTHY, ACTIVE CELLS THAT ARE NEEDED, THE CONDITION IS CALLED LEUKEMIA, OR CANCER OF THE BLOOD.
SO THE BLOOD IS LIKE ACHEMICAL FORMULA IN WHICH THERE HAS TO BE JUST THE RIGHT AMOUNT OF EACH SUBSTANCE-RED CELLS,WHITE CELLS, PROTEINS, SALT, CARBOHYDRATES, FATS AND SO ON.