File:Brain tract development 06.jpg

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Brain Tract Development - Limbic Tracts

3D depiction of developmental white matter fibres. The medial limbic system (circuit) is also called the Papez circuit. Named after James Papez in 1937 proposed a connection between the hypothalamus to the limbic lobe involved in control of emotional expression. Components of the limbic system communicate by the cingulum, white matter fibers projecting from the cingulate gyrus to the entorhinal cortex.


A lateral view of limbic tracts where pink fibers in 13, 15, and 19 week brains are the fornix and stria terminalis and purple fibers in the 19 week brains indicate the cingulum bundle.

For anatomical guidance, the thalamus (yellow structure) and the ventricles (gray structure) are also shown.


Links: Thalamus Development | Ventricular System Development

Diffusion tensor imaging (DTI) A newly developed form of magnetic resonance imaging (MRI). Magnetic field variations of the MRI magnet are applied in at least six different directions generating a three dimensional shape of the diffusion pattern. This technique can be used in neural imaging of white matter due to the orientation of axon bundles and the associated water flow. (More? Magnetic Resonance Imaging)

Neural DTI Links: Scaled Fissures 13-21 weeks | Fissures 13-21 weeks | Brain Sylvian Fissure | Scaled Brain and Ventricles 13-21 weeks | Scaled Brain, Ventricles and Ganglia 13-21 weeks | Limbic Tract 13-19 weeks | Brain and Ventricles 13-21 weeks | Sylvian Fissure Movie | Neural System Development | Magnetic Resonance Imaging

Reference

<pubmed>19339620</pubmed>| PMC2721010 | J Neurosci.

Copyright

Copyright of all material published in The Journal of Neuroscience remains with the authors. The authors grant the Society for Neuroscience an exclusive license to publish their work for the first 6 months. After 6 months the work becomes available to the public to copy, distribute, or display under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported license.

Original File Name: Figure 3 - 3D depiction of developmental white matter fibers. Original figures were scaled to the 19 week brain from original figure.



Cite this page: Hill, M.A. (2019, April 20) Embryology Brain tract development 06.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Brain_tract_development_06.jpg

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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