| Rhinencephalon | |
|---|---|
 Scheme of rhinencephalon | |
| Details | |
| Identifiers | |
| Latin | rhinencephalon |
| NeuroNames | 2078 |
| Anatomical terms of neuroanatomy | |
Inanimal anatomy, therhinencephalon (from the Greek, ῥίς,rhis = "nose", and ἐγκέφαλος,enkephalos = "brain"), also called thesmell-brain orolfactory brain, is a part of thebrain involved with smell (i.e.olfaction). It forms thepaleocortex in thehuman brain.[citation needed]
The termrhinencephalon has been used to describe different structures at different points in time.[1]
One definition includes the olfactory bulb, olfactory tract,anterior olfactory nucleus,anterior perforated substance,medial olfactory stria,lateral olfactory stria, parts of theamygdala andprepyriform area.[2]
Some references classify other areas of the brain related to perception of smell as rhinencephalon, but areas of the human brain that receive fibers strictly from theolfactory bulb are limited to those of thepaleopallium. As such, the rhinencephalon includes the olfactory bulb, theolfactory tract, theolfactory tubercle andstriae, theanterior olfactory nucleus and parts of theamygdala and thepiriform cortex.[clarification needed (seetalk)]
The development of the rhinencephalon varies among species. A small area where thefrontal lobe meets thetemporal lobe and the area of cortex on theuncus of theparahippocampal gyrus (both belonging to the olfactory cortex) have a different structure (so called "allocortex") than most of thetelencephalon and arephylogenetically older (so calledpaleocortex).[3]
 | Thisneuroanatomy article is astub. You can help Wikipedia byexpanding it. |