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  2. Evolution of nervous systems - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_nervous_systems

    Area of the human body surface innervated by each spinal nerve. Even mammals, including humans, show the segmented bilaterian body plan at the level of the nervous system. The spinal cord contains a series of segmental ganglia, each giving rise to motor and sensory nerves that innervate a portion of the body surface and underlying musculature ...

  3. History of neuroscience - Wikipedia

    en.wikipedia.org/wiki/History_of_neuroscience

    Islamic medicine in the middle ages was focused on how the mind and body interacted and emphasized a need to understand mental health. Circa 1000, Al-Zahrawi, living in Islamic Iberia, evaluated neurological patients and performed surgical treatments of head injuries, skull fractures, spinal injuries, hydrocephalus, subdural effusions and headache. [4]

  4. Development of the nervous system in humans - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_nervous...

    Many neurons migrating along the anterior-posterior axis of the body use existing axon tracts to migrate along in a process called axophilic migration. [18] An example of this mode of migration is in GnRH-expressing neurons, which make a long journey from their birthplace in the nose, through the forebrain, and into the hypothalamus. [19]

  5. Evolution of the brain - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_the_brain

    Even less is known about molecular specificities linked to the physiology of the human neurons. Human neurons are more divergent in the genes they express compared to chimpanzees than chimpanzees to gorilla, which suggests an acceleration of non-coding genomic regions associated with genes involved in neuronal physiology, in particular linked ...

  6. Development of the nervous system - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_nervous...

    Each wave of migrating cells travel past their predecessors forming layers in an inside-out manner, meaning that the youngest neurons are the closest to the surface. [27] [28] It is estimated that glial guided migration represents 90% of migrating neurons in human and about 75% in rodents. [29]

  7. This Blob Is the Size of a Grain of Sand. It's the Key to ...

    www.aol.com/blob-size-grain-sand-key-185500116.html

    The placozoan is oh-so-tiny. We’re talking one-millimeter teeny—the itty-bitty marine animal is only the size of a large grain of sand. And it’s just a simple disc-like blob grazing on algae ...

  8. Neurogenesis - Wikipedia

    en.wikipedia.org/wiki/Neurogenesis

    A Brief History and Timeline | Neurogenesis; History Module: The Growth of New Neurons in the Adult Human Brain; Article: Nature Medicine 4, 1313 - 1317 (1998) doi:10 ...

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