forebrain


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prosencephalon

 [pros″en-sef´ah-lon]
1. the portion of the brain developed from the anterior of the three primary brain vesicles in the early embryo, comprising the diencephalon and telencephalon.
2. the most anterior of the primary brain vesicles; called also forebrain.

pros·en·ceph·a·lon

(pros'en-sef'ă-lon), [TA]
The anterior primordial cerebral vesicle and the most rostral of the three primary brain vesicles of the embryonic neural tube; it subdivides to form the diencephalon and telencephalon.
Synonym(s): forebrain vesicle ☆ , forebrain ☆ , proencephalon
[G. prosō, forward, + enkephalos, brain]

forebrain

(fôr′brān′)
n.
1. The most anterior of the three primary regions of the embryonic brain from which the telencephalon and diencephalon develop.
2. The segment of the adult brain that develops from the embryonic forebrain and includes the cerebrum, thalamus, and hypothalamus.

pros·en·ceph·a·lon

(pros'en-sef'ă-lon) [TA]
The anterior primordial cerebral vesicle and the most rostral of the three primary brain vesicles of the embryonic neural tube; it subdivides to form the diencephalon and telencephalon.
Synonym(s): forebrain.
[G. prosō, forward, + enkephalos, brain]

forebrain

that part of the brain which gives rise to the CEREBRAL HEMISPHERES, olfactory lobes, the PINEAL GLAND, PITUITARY GLAND and the OPTIC CHIASMA (which carries nerve fibres from the eyes to the midbrain). It is marked by a constriction in the developing embryo where the brain appears to be three-lobed, the forebrain, MIDBRAIN and HINDBRAIN.
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References in periodicals archive ?
In the present study, we investigated the role of salvinorin A in cerebral pial artery protection in a rat model of forebrain ischemia injury.
Salvinorin A preserves cerebral pial artery autoregulation after forebrain ischemia via the PI3K/AKT/cGMP pathway
Microscopic examination, including asynuclein immunostaining, demonstrated severe and diffuse LBD pathology, with characteristic involvement of brainstem nuclei, limbic structures, and basal forebrain, as well as temporal neocortex (Figure 5, A through F).
Hippocampal Sclerosis in Older Patients: Practical Examples and Guidance With a Focus on Cerebral Age-Related TDP-43 With Sclerosis
However, stimulation of neural progenitors with BDNF and NGF upregulates LHX8 expression in MGE areas of the embryonic forebrain, whereas CNTF induce LIM homeobox 6 transcription factor (LHX6) expression in other subdomains of the MGE.
Generation of Cholinergic and Dopaminergic Interneurons from Human Pluripotent Stem Cells as a Relevant Tool for In Vitro Modeling of Neurological Disorders Pathology and Therapy
BCCAo has been reported to decrease the expression of ChAT, an enzyme for Ach synthesis, in the basal forebrain of rats (Choi et al., 2011).
Ginkgo biloba L. extract protects against chronic cerebral hypoperfusion by modulating neuroinflammation and the cholinergic system
The rodent MFB stretches from the ventral tegmental area (VTA) in the midbrain to several forebrain structures and includes both myelinated and short typically unmyelinated ascending and descending projections.
Feasibility and safety of continuous and chronic bilateral deep brain stimulation of the medial forebrain bundle in the naive Sprague-Dawley rat
Low-voltage activated calcium currents increase in basal forebrain neurons from aged rats.
The aging brain part 2: calcium homeostasis and a theory of brain aging
Mice were euthanized by cervical dislocation and forebrain (without olfactory bulb) and cerebellum were dissected into 0.1 M ice-cold phosphate buffered saline (pH 7.
[GABA.sub.A] receptor expression in the forebrain of ataxic rolling Nagoya mice
To evaluate the brain atrophy, forebrain and hippocampus volumes were measured.
Brain aging and AD-like pathology in streptozotocin-induced diabetic rats
The total number of basal forebrain cholinergic neurons in the brain of these animals had been previously assessed by unbiased stereological procedures [17].
Neprilysin is poorly expressed in the prefrontal cortex of aged dogs with cognitive dysfunction syndrome
The second section is on neuron migration during brain development and the different migratory patterns within important brain regions such as the hippocampus, forebrain, and cerebral cortex.
Cellular migration and formation of neuronal connections
22 ( ANI ): Researchers have shown that interneurons located in the forebrain at the level of the prefrontal cortex are heavily involved in the control of fear responses.
How fear and anxiety disorders can be controlled
They also include regions representing the ventral forebrain and even the immature retina," said one of the researchers, Madeline Lancaster.
A cultivated brain

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