subfornical organ


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to subfornical organ: Subcommissural organ

sub·for·ni·cal or·gan (SFO),

the intercolumnar tubercle. One of the circumventricular organs., SFO has fenestrated capillaries and is outside the blood-brain barrier. It is thought to be a chemoreceptor zone involved in cardiovascular regulation.
Synonym(s): organum subfornicale [TA]
References in periodicals archive ?
Mogenson, "Effects of plasma angiotensin II and hypernatremia on subfornical organ neurons," The American Journal of Physiology, vol.
This hypothalamic region is comprised primarily of the organum vasculosum of the lamina terminalis (OVLT), median preoptic nucleus (MnPO), and efferent fibers of the subfornical organ (SFO) [3].
The thirst-regulating circuit is located in a region of the brain called the subfornical organ (SFO).
Thus, circulating AngII may activate neurons at the subfornical organ (67), which sends axonal projections to the SON, increasing MNC activity via AngII release and activation of postsynaptic AngII receptors type-1 (AT1).