Hormones Flashcards
homeostasis
keeping the self stable
hypothalamus regulates homeostasis by
releasing hormones into the bloodstream
sending axonal projections to autonomic nerve centers
autonomic nervous system
controls body functions and behaviors that we do not consciously or voluntarily regulate
sympathetic nervous system
promotes active states that often involve increased metabolism and consumption of the body’s energy
parasympathetic nervous system
promotes resting states that often involve decreased metabolism and conservation of the body’s energy
endotherms
animals that generate their own body heat
vasodilation
expanding the diameter of blood vessels
hypovolemic thirst
thirst that occurs when the volume of fluid in the body is below normal
osmotic thirst
thirst caused by too much salt in the body
orexia
hunger
orexigenic signals
brain signals that promote hunger
anorexia
satiety
anorexigenic signals
brain signals that suppress hunger
insulin
a hormone produced by the pancreas following food consumption so that glucose can be converted into energy by the cells
T1 Diabetes
failure of the body to make insulin
T2 Diabetes
body failure to respond normally to insulin
leptin
a hormone secreted by fat cells into the bloodstream when they have grown large because of storing food energy
PYY
a hormone made by the intestines when they are filled with food
adipose tissue
fat cells that store food energy for later use
ghrelin
a hormone that is produced by the stomach when it is empty and acts as a hunger signal
anorexia nervosa
a pathological loss of appetite that originate in the nervous system
