Endogenous
The word
endogenous means 'arising from within'. Compare
exogenous.
Endogenous substances are those that originate from within an organism, tissue or cell [
1]. In
biological systems
endogeneity refers to the recipient of DNA (usually in prokaryotes). However, due to
homeostasis, discerning between internal and external influences is often difficult.
In an
economic model, an
endogenous change is one that comes from inside the model and is explained by the model itself.
All processes that take place inside the
Earth (and other
planets) are considered endogenous. They make the
continents move, push the
mountains up, and trigger
earthquakes and
vulcanism. Endogenous processes are driven by the warmth which is produced in the core of the Earth by
radioactivity and
gravity.
An
emotion or
behaviour is endogenous if it is spontaneously generated from an individual's internal state.
