Homeostasis Flashcards
What things does homeostasis keep within a certain range?
Ph level
Blood glucose
Internal body temperature
What is negative feedback?
Type of control that responds when conditions change from ideal point, returns conditions to ideal
What hormones are released to control blood glucose?
Insulin - too high
Glucagon - too low
What is positive feedback?
Instead of counteracting variable, it intensifies e.g labour
Moves away from ideal
What is homeostasis?
Body’s ability to maintain stable internal environment
What are thermoreceptors?
Sensory receptors that are sensitive to changes in temperature
Humans are…
Endotherms
What does endotherm mean?
Warm blooded
What do we keep our internal temperature at?
37 degrees
What is the process called of when we lose heat?
Vasodilation
What is the process called when the body tries to warm us up?
Vasoconstriction
Water content of blood is controlled by a hormone called?
Anti-diuretic hormone (ADH)
What does glucose in the urine indicate?
Diabetes
What does protein in the urine indicate?
Damage in the kidney
What part of the brain monitors body temperature?
Hypothalamus
