healthy human nerve fiber section (neuron fibres) - 3d top view

nervous neuron astrocytic glial brain telodendria catecholamine neurotransmitter dopamine neural axon serotonin stimulus mitochondrion endorphin noradrenaline oxytocin peptide neuropeptide dendrite golgi apparatus myelin sheath hyponatremia dementia calcium node ranvier receptor adrenaline schwann cell stroke tia hormone alzheimer multiple sclerosis seizures tumor cancer mental synapse electron nerve signal nucleon muscle neurology nucleus impulse electric epilepsy healthy human fiber fibres closeup view top