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  2. White matter - Wikipedia

    en.wikipedia.org/wiki/White_matter

    White matter is the tissue through which messages pass between different areas of grey matter within the central nervous system. The white matter is white because of the fatty substance (myelin) that surrounds the nerve fibers (axons). This myelin is found in almost all long nerve fibers, and acts as an electrical insulation.

  3. Outline of brain mapping - Wikipedia

    en.wikipedia.org/wiki/Outline_of_brain_mapping

    dMRI is a recent breakthrough in brain mapping allowing the visualization of cross connections between different anatomical parts of the brain. It allows noninvasive imaging of white matter fiber structure and in addition to mapping can be useful in clinical observations of abnormalities, including damage from stroke.

  4. List of regions in the human brain - Wikipedia

    en.wikipedia.org/wiki/List_of_regions_in_the...

    Olivary body. Inferior olivary nucleus; Rostral ventrolateral medulla; Caudal ventrolateral medulla; Solitary nucleus (Nucleus of the solitary tract) Respiratory center-Respiratory groups. Dorsal respiratory group; Ventral respiratory group or Apneustic centre. Pre-Bötzinger complex; Botzinger complex; Retrotrapezoid nucleus; Nucleus ...

  5. Outline of the human nervous system - Wikipedia

    en.wikipedia.org/wiki/Outline_of_the_human...

    The following diagram is provided as an overview of and topical guide to the human nervous system: Human nervous system. Human nervous system – the part of the human body that coordinates a person's voluntary and involuntary actions and transmits signals between different parts of the body.

  6. Myelin - Wikipedia

    en.wikipedia.org/wiki/Myelin

    Being rich in lipid, myelin appears white, hence the name given to the "white matter" of the CNS. Both CNS white matter tracts (e.g. the optic nerve, corticospinal tract and corpus callosum) and PNS nerves (e.g. the sciatic nerve and the auditory nerve, which also appear white) each comprise thousands to millions of axons, largely aligned in ...

  7. Nerve tract - Wikipedia

    en.wikipedia.org/wiki/Nerve_tract

    White matter tracts within a human brain, as visualized by MRI tractography A nerve tract is a bundle of nerve fibers ( axons ) connecting nuclei of the central nervous system . [ 1 ] [ 2 ] [ 3 ] In the peripheral nervous system , this is known as a nerve fascicle , and has associated connective tissue .

  8. Neuroanatomy - Wikipedia

    en.wikipedia.org/wiki/Neuroanatomy

    In anatomy in general and neuroanatomy in particular, several sets of topographic terms are used to denote orientation and location, which are generally referred to the body or brain axis (see Anatomical terms of location). The axis of the CNS is often wrongly assumed to be more or less straight, but it actually shows always two ventral ...

  9. Arcuate fasciculus - Wikipedia

    en.wikipedia.org/wiki/Arcuate_fasciculus

    Myelination is a process by which axons are covered with a protective substance called myelin that drastically increases the signaling efficiency of the neuron. [7] The arcuate fasciculus is heavily myelinated in healthy adult brains. The density of this myelination has been found to predict the accuracy and speed to which one can comprehend ...

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