the image shows a detailed rendering of neurons, their intricate branching structures glowing bright teal against a dark

neuron nerve cell fiber axon dendrite synapse neurotransmitter neuroglia glial myelin sheath schwann oligodendrocyte node ranvier action potential impulse depolarization repolarization resting sodiumpotassium pump membrane ion channel voltagegated ligandgated synaptic cleft receptor neurotransmission neural network brain spinal cord nervous