types of neurons

neurone impulse organ sheath scientific isolated central neurology myelin structure schwann diagram healthy brain communication glial cells diffusion unipolar bipolar multipolar neurons types synaptic connections enzymatic degradation axon terminal muscle works graded potential post transmission voltage gated nerve electric signals cell medicine system science health nervous anatomy sensory dendrites human vector motor biology neuron nucleus synapse cleft body membrane dendrite terminus transporter hyperpolarizing receptor pre hillock transmitter nano column chemical reaction neuroscience multiple sclerosis action potentials depolarizing calcium