Zusammenfassung der Ressource
HOMEOSTATIS
- 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.