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Encyclopedia > Septal nuclei

The septal nuclei are structures in the middle anteroventral cerebrum that are composed of medium-sized neurons and which are grouped into medial, lateral, and posterior groups. The septal nuclei receive reciprocal connections from the hippocampus, amygdala, hypothalamus, midbrain, habenula, cingulate gyrus, and thalamus. The telencephalon (te-len-seff-a-lon) is the technical name for a large region within the brain which is attributed many functions, which some groups would class as unique features which make humans stand out from other species. ... The location of the hippocampus in the human brain. ... Location of the amygdala in the human brain Located deep in the brains medial temporal lobe, the almond-shaped amygdala (in Latin, corpus amygdaloideum) is believed to play a key role in the emotions. ... In the anatomy of mammals, the hypothalamus is a region of the brain located below the thalamus, forming the major portion of the ventral region of the diencephalon and functioning to regulate certain metabolic processes and other autonomic activities. ... In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. ... This article may be too technical for most readers to understand. ... Cingulate gyrus is a gyrus in the medial part of the brain. ... The thalamus (from Greek thálamos = bedroom, chamber) is a part of the brain. ...


External links:

  • Histological Images of Septal Nuclei

  Results from FactBites:
 
BRAIN AREAS SUPPORTING CEREBRAL CORTEX FUNCTION (4149 words)
Three of the four association nuclei are on the dorsal (top) surface of the thalamus: the mediodorsal nucleus, the lateral dorsal nucleus and the lateral posterior nucleus.
The caudate nucleus is an elongated extension of the putamen.
The fornix is a bundle of fibers connecting the hippocampus with the septal nuclei and with the mammillary bodies of the hypothalamus.
The Symphonic Architecture of Mind (18705 words)
In particular, the basal lateral nuclei (known to be crucial to the defense reaction) project to ventromedial portions of the caudate nucleus and to the putamen, with modest contralateralization via the anterior commissure (constituting an extra-collosal pathway whereby contralateral emotional state is entrained).
The pontomesencephalotegmental cholinergic complex (consisting of the pedunculopontine (PPT) and laterodorsal tegmental (LDT) nuclei) innervates the PAG, VTA, dorsal raphe, dorsal thalamus, lateral hypothalamus, SN, basal ganglia, hippocampus, and portions of frontal cortex, and is innervated by SN, the medial pallidal segment, and portions of the cerebral cortex.
The raphe nuclei innervate the substantia nigra, the locus ceruleus, the hypothalamus, the intralaminar thalamic nuclei (the rostral portion of which is a component of the conscious circuit), cerebral cortex favoring frontal cortex, the hippocampal formation, the neostriatum, and the amygdala.
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