D3.3 Flashcards
Define homeostasis.
List examples of variables that are maintained by homeostasis by humans.
Compare consequences of negative and positive feedback.
Explain how negative feedback loops maintain homeostasis.
Explain the control of blood glucose concentration, including the roles of glucagon, insulin and the endocrine cells in the pancreatic islets.
Distinguish between causes of type I and type II diabetes.
Distinguish between treatment of type I and type II diabetes.
List risk factors associated with type II diabetes.
Define thermoregulation.
State that birds and mammals are thermoregulators.
Outline thermoregulation as a negative feedback loop.
Explain the process of thermoregulation in humans, including roles of peripheral and central thermoreceptors, the hypothalamus and pituitary gland, thyroxin and muscle and adipose tissue that act as effectors of temperature change.
Outline physiological and behavioral responses to cold temperature, including vasoconstriction, shivering, uncoupled respiration and hair erection.
Outline physiological and behavioral responses to heat, including vasodilation and sweating.
State the functions of the kidney.