Stria medullaris of thalamus

Stria medullaris of thalamus
Stria medullaris highlighted in red over the thalamus. Posterior to the thalamus, the highlighted portion is the pineal gland
Details
Identifiers
Latin	Stria medullaris thalamica
NeuroNames	hier-281
NeuroLex ID	Stria medullaris
TA	A14.1.08.106
FMA	62080
*Anatomical terms of neuroanatomy* [edit on Wikidata]

The stria medullaris is a part of the epithalamus. It is a fiber bundle containing afferent fibers from the septal nuclei, lateral preoptico-hypothalamic region, and anterior thalamic nuclei to the habenula. It forms a horizontal ridge on the medial surface of the thalamus,and is found on the border between dorsal and medial surfaces of thalamus. superior and lateral to habenular trigone.

It projects to the habenular nuclei,^[1] from anterior perforated substance and hypothalamus, to habenular trigone, to habenular commissure, to habenular nucleus.

References

↑ http://www.dartmouth.edu/~rswenson/NeuroSci/chapter_10.html

Anatomy of the diencephalon of the human brain

Epithalamus

Surface	Pineal gland Habenula Habenular trigone Habenular commissure

Grey matter	Pretectal area Habenular nuclei Subcommissural organ

Thalamus

Surface	Stria medullaris of thalamus Thalamic reticular nucleus Taenia thalami

Grey matter/ nuclei	paired: AN Ventral VA/VL VP/VPM/VPL Lateral LD LP Pulvinar nuclei Metathalamus MG LG P cell M cell K cell midline: MD Intralaminar Centromedian Midline nuclear group Interthalamic adhesion

White matter	Mammillothalamic fasciculus Pallidothalamic tracts Ansa lenticularis Lenticular fasciculus Thalamic fasciculus PCML Medial lemniscus Trigeminal lemniscus Spinothalamic tract Lateral lemniscus Dentatothalamic tract Acoustic radiation Optic radiation Subthalamic fasciculus Anterior trigeminothalamic tract Medullary laminae

Hypothalamus

Surface

Grey matter

Autonomic zones	Anterior (parasympathetic/heat loss) Posterior (sympathetic/heat conservation)

Endocrine	posterior pituitary: Paraventricular Magnocellular neurosecretory cell Parvocellular neurosecretory cell Supraoptic oxytocin/vasopressin other: Arcuate (dopamine/GHRH) Preoptic (GnRH) Suprachiasmatic (melatonin)

Emotion	Lateral Ventromedial Dorsomedial

White matter

afferent
- Medial forebrain bundle
- Retinohypothalamic tract
efferent

Pituitary

Posterior is diencephalon, but anterior is glandular

Subthalamus

Anatomy of smell

Microanatomy

Olfactory nerve: 1° neuron

Olfactory receptor neurons (Olfactory receptor) → Olfactory bulb (Glomeruli)

Olfactory nerve: 2° neuron

Mitral cells → Olfactory tract → Olfactory trigone

Lateral olfactory stria/
Primary olfactory cortex

Piriform cortex EC-hippocampus system Entorhinal cortex Hippocampal formation Prepyriform area Periamygdaloid cortex

Stria medullaris → Habenular nuclei

Amygdala → Stria terminalis → Hypothalamus

Medial forebrain bundle → Hypothalamus

Medial olfactory stria

Anterior olfactory nucleus

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