
Khan Academy | Khan Academy
Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.
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 " …
Khan Academy
Explore the structure and function of neurons, the building blocks of the nervous system, and understand their role in transmitting signals.
Khan Academy
Khan Academy ... Khan Academy
Khan Academy | Khan Academy
Opa. Algo deu errado. Por favor, tente novamente. Ah não, parece que ocorreu um erro. Você precisa atualizar. Se o problema persistir, fale conosco.
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 …
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 !
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 …
Khan Academy
Regardless of who you are, mastering even just one more skill on Khan Academy results in learning gains.
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 …