Homeostasis Flashcards
Define homeostasis.
The maintenance of a stable internal environment.
How is blood sugar regulated in the body?
By insulin and glucagon.
What happens during vasodilation?
Blood vessels widen to release heat and cool the body.
What is vasoconstriction?
Blood vessels narrow to retain heat.
How does shivering help maintain body temperature?
Muscle contractions generate heat.
What hormone regulates water balance in the kidneys?
Anti-diuretic hormone (ADH).
How does sweating cool the body?
Evaporation of sweat removes heat.
What organ monitors blood sugar levels?
The pancreas.
What is negative feedback?
A process that restores a system to its set point after a change.
Why is homeostasis important?
It ensures optimal conditions for enzyme action and cell functions.
