Medullary laminae of thalamus

Medullary laminae of thalamus
Thalamic nuclei
Details
Identifiers
Latin	lamina medullaris lateralis thalami, lamina medullaris medialis thalami
TA	A14.1.08.660 A14.1.08.661
*Anatomical terms of neuroanatomy* [edit on Wikidata]

Medullary laminae of thalamus are layers of myelinated fibres that appear on cross sections of the thalamus. They also are commonly referred to as laminae medullares thalami or medullary layers of thalamus. The specific layers are:^[1]

Lamina medullaris lateralis (external medullary lamina)^[2] - separates ventral and lateral thalamus from the subthalamus and thalamic reticular nucleus
Lamina medullaris medialis (internal medullary lamina)^[3] - positioned between the dorsomedial and ventral nuclei of thalamus, encloses the intralaminar nuclei (centromedian nucleus, paracentral, and central lateral)

References

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

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