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The epithalamus (pl.: epithalami) is a posterior segment of the diencephalon. [3] The epithalamus includes the habenular nuclei , the stria medullaris , the anterior and posterior paraventricular nuclei , the posterior commissure , and the pineal gland .
3.1.1 Epithalamus. 3.1.2 Third ventricle. 3.1.3 Thalamus. 3.1.4 Hypothalamus (limbic system) (HPA axis) ... Download QR code; Print/export Download as PDF; Printable ...
The posterior commissure (also known as the epithalamic commissure) is a rounded band of white fibers crossing the middle line on the dorsal aspect of the rostral end of the cerebral aqueduct.
The stria medullaris (SM), (Latin, furrow and pith or marrow) is a part of the epithalamus and forms a bilateral white matter tract of the initial segment of the dorsal diencephalic conduction system (DDCS). It contains afferent fibers from the septal nuclei, lateral preoptico-hypothalamic region, and anterior thalamic nuclei to the habenula.
The pineal gland is located in the epithalamus, near the center of the brain, between the two hemispheres, tucked in a groove where the two halves of the thalamus join. [4] [5] It is one of the neuroendocrine secretory circumventricular organs in which capillaries are mostly permeable to solutes in the blood. [6]
The primary input regions to the lateral habenula (LHb) are the lateral preoptic area (bringing input from the hippocampus and lateral septum), the ventral pallidum (bringing input from the nucleus accumbens and mediodorsal nucleus of the thalamus), the lateral hypothalamus, the medial habenula, and the internal segment of the globus pallidus (bringing input from other basal ganglia structures).
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An epithalamium (/ ˌ ɛ p ɪ θ ə ˈ l eɪ m i əm /; Latin form of Greek ἐπιθαλάμιον epithalamion from ἐπί epi "upon," and θάλαμος thalamos "nuptial chamber") is a poem written specifically for the bride on the way to her marital chamber.