HOMEOSTATIS IS THE REGULATION
OF CONDITIONS IN THE BODY SUCH
AS TEMPERATURE, WATER CONTENT
AND CARBON DIOXIDE LEVELS.
DIABETES IS A
CONDITION WHERE
THE BODY CANNOT
REGULATE ITS BLOOD
GLUCOSE LEVELS
THE CONDITIONS INSIDE OUR BODY MUST
BE VERY CAREFULLY CONTROLLED IF THE
BODY IS TO FUNCTION EFFECTIVELY.
HOMEOSTATIS IS THE MAINTENANCE OF A
CONSTANT OF A CONSTANT INTERNAL
ENVIRONMENT. THE NERVOUS SYSTEM AND
HORMONES ARE RESPONSIBLE FOR THIS.
BODY TEMPERATURE
THIS IS CONTROLLED TO
MAINTAIN THE
TEMPERATURE AT WHICH
THE BODY'S ENZYMES
WORK BEST, WHICH IS
USUALLY 37°C.
BLOOD SUGAR LEVEL
THIS IS CONTROLLED TO PROTECT
CELLS WITH A CONSTANT SUPPLY OF
GLUCOSE FOR RESPIRATION. IT IS
CONTROLLED BY THE RELEASE AND
STORAGE OF GLUCOSE, WHICH IN
TURN IS CONTROLLED BY INSULIN.
WATER CONTENT
THIS IS CONTROLLED TO PROTECT CELLS
BY STOPPING TOO MUCH WATER FROM
ENTERING OR LEAVING THEM. WATER
CONTENT IS CONTROLLED BY WATER
LOSS FROM: THE LUNGS -WHEN WE
EXHALE, THE SKIN -BY SWEATING + THE
BODY -IN URINE PRODUCED BY THE
KIDNEYS
NEGATIVE FEEDBACK
HOMEOSTATIC CONTROL IS ACHIEVED
USING NEGATIVE FEEDBACK
MECHANISMS; IF THE LEVEL OF
SOMETHING RISES, CONTROL SYSTEMS
REDUCE IT AGAIN. IF THE LEVEL OF
SOMETHING FALLS, THE CONTROL
SYSTEMS RAISE IT AGAIN.