Brain

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brain : the portion of the vertebrate central nervous system enclosed in the skull and continuous with the spinal cord through the foramen magnum that is composed of neurons and supporting and nutritive structures (as glia) and that integrates sensory information from inside and outside the body in controlling autonomic function (as heartbeat and respiration), in coordinating and directing correlated motor responses, and in the process of learning — Webster

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Brain The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. The brain is located in the head, usually close to the sensory organs for senses such as vision. The brain is the most complex organ in a vertebrate’s body. In a human, the cerebral cortex contains approximately 15–33 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells. — Wikipedia

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Scientific American: Mind & Brain Science news and technology updates from Scientific American


Nature Reviews Neuroscience - Issue - nature.com science feeds Nature Reviews Neuroscience is the leading review journal in the neurosciences. It publishes articles that review recent progress in brain and nervous system research. Topics range from molecular and cellular aspects of neuronal development and function to behavior, cognition and disorders of the nervous system. By commissioning the best authors to write on the timeliest issues, and following a rigorous peer-review process, the journal provides an unparalleled source of information and opinion for neuroscientists in academia, clinical research and industry. One of the unique features of Nature Reviews Neuroscience is its extraordinary breadth and depth of coverage. This very broad scope – from molecules to mind – captures the essence of modern neuroscience, and allows the journal to attract readers from all areas of this ever-expanding discipline.

  • The sympathetic nervous system in development and...
    by Emily Scott-Solomon on October 1, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 01 October 2021; doi:10.1038/s41583-021-00523-yThe sympathetic regulation of bodily functions relies on precise connections between sympathetic neurons and peripheral organs. In this Review, Scott-Solomon and colleagues discuss the mechanisms underlying the development of the sympathetic nervous system and provide insight into disorders regulated by this branch of the nervous system.

  • Cell-specific restraint
    by Jake Rogers on September 29, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 29 September 2021; doi:10.1038/s41583-021-00527-8A new study describes opposing cell-specific RhoA-dependent mechanisms linking the intrinsic regulation of neuronal microtubule dynamics and the extrinsic regulation of reactive astrocyte signalling that restrain axon regeneration.

  • Delivering clathrin
    by Darran Yates on September 28, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 28 September 2021; doi:10.1038/s41583-021-00529-6Clathrin undergoes axonal transport as stable ‘packets’, which become more dynamic at synapses.

  • Glucose control
    by Sian Lewis on September 28, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 28 September 2021; doi:10.1038/s41583-021-00530-zThe raphe nucleus contains specific populations of serotonergic neurons that express either orexin type 1 or type 2 receptors that directionally regulate plasma glucose and peripheral energy metabolism.

  • Mechanisms governing activity-dependent synaptic...
    by Travis E. Faust on September 20, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 20 September 2021; doi:10.1038/s41583-021-00507-yNeural circuits in the mammalian central nervous system are modified in response to neural activity during development. In this Review, Faust and colleagues provide an overview of the mechanisms underlying developmental synaptic pruning and how alterations in this process can occur in neurodevelopmental disorders such as autism spectrum disorder and schizophrenia.