CH9 Flashcards
vital to the normal functioning of many behavioral processes
Temperature regulation
processes that reduce discrepancies from the set point
Negative feedback
a single value that the body works to maintain
Set point
refers to the adaptive way in which the body anticipates needs depending on the situation
Allostasis
Energy used to maintain a constant body temperature while at rest
Basal metabolism
idea that the body temperature matches that of the environment
Poikilothermic (ectothermic)
use of internal physiological mechanisms to maintain an almost constant body temperature
Homeothermic (endothermic)
Body temperature regulation is predominantly dependent upon areas in the _____
______ receives input from temperature receptors throughout the body
preoptic area/ anterior hypothalamus (POA/AH
Reflects an increased body temperature set point, directed by the hypothalamus
Fever
is a hormone released by the posterior pituitary
Vasopressin
Two different kinds of thirst
______: results from eating salty foods
_______: a thirst resulting from loss of fluids due to bleeding or sweating
Osmotic thirst, Hypovolemic thirst
___________: strong craving for salty foods
Develops automatically to restore solute levels in the blood
Sodium-specific hunger
The main signal to stop eating is the _____
distention of the stomach
Part of the small intestine
Site of initial absorption of significant amounts of nutrients
Duodenum
released by the duodenum regulates hunger by:
Closing the sphincter muscle between the stomach and duodenum and causing the stomach to hold its contents and fill faster
Stimulating the vagus nerve to send a message to the hypothalamus that releases a chemical similar to CCK
Cholecystokinin (CCK)
