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  1. Khan Academy | Khan Academy

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  2. Przegląd budowy i funkcji neuronu (artykuł) | Khan Academy

    Mielina dramatycznie zwiększa szybkość, z jaką potencjał czynnościowy przemieszcza się w dół aksonów i odgrywa kluczową rolę w funkcjonowaniu układu nerwowego. _Obraz zmodyfikowany z " …

  3. Khan Academy

    Explore the structure and function of neurons, the building blocks of the nervous system, and understand their role in transmitting signals.

  4. Khan Academy

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  5. Khan Academy | Khan Academy

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  6. Nervous system: Organization of motor neurons - Khan Academy

    The organization of upper motor neurons (UMNs), lower motor neurons (LMNs), and sensory neurons creates a feedback system that modulates the strength of muscle contraction, maintains passive …

  7. Statistique à une variable | Khan Academy

    Prochaine étape pour vous : Individus, variables et données qualitatives & quantitatives Réussissez 3 questions sur 4 pour passer au niveau supérieur !

  8. Neuronal synapses (chemical) (video) | Khan Academy

    There actually are certain neurons where there isn't any gap--electrical synapses connect directly because electrical signals cannot travel through a gap. Chemical synapses need the synaptic cleft so …

  9. Khan Academy

    Regardless of who you are, mastering even just one more skill on Khan Academy results in learning gains.

  10. Upper motor neurons (video) | Khan Academy

    Located in the cerebral cortex, these neurons follow specific pathways and their dysfunction can impact reflexes and muscle tone. Understanding their role is key to unraveling the complexities of our …