Related by context. Frequent words. (Click for all words.) 71 auditory nerve 63 sensory nerves 62 cochlear 61 optic nerves 61 cochlea 58 nerve endings 58 electrical impulses 57 nerve impulses 56 nerve fibers 56 spinal nerves 56 nerve cells 55 brainstem 55 trigeminal nerve 55 electrical pulses 54 vagus nerve 54 nasal cavity 54 temporal lobes 54 muscle contractions 54 electrodes 54 eardrum 53 neural pathways 53 ear canal 53 jaw muscles 53 brain 53 synapses 53 neurons 53 neurones 53 neural circuits 52 cerebellum 52 excitatory 52 temporal lobe 52 auditory 52 optic nerve 52 sensory input 52 visual cortex 52 ear canals 52 neural circuitry 52 sensory neurons 51 astrocyte 51 dendritic spines 51 neuron 51 inner ear 51 sweat glands 51 Neurons 51 dopamine neurons 51 synaptic connections 51 neuronal activity 51 electrical currents 50 cortex 50 retinal cells 50 Schwann cells 50 auditory cortex 50 sebaceous glands 50 olfactory bulb 50 facial muscles 50 cochlear implants 50 cerebellar 50 spinal chord 50 diseased tissues 50 auditory processing 50 brain circuitry 50 diseased tissue 50 vestibular 49 Electrodes 49 cochlear implant 49 pineal gland 49 neural connections 49 chemical messengers 49 hair follicles 49 synaptic plasticity 49 retinas 49 peripheral nerves 49 midbrain 49 lymphatic vessels 49 external stimuli 49 neural 49 blood vessels 49 limbic 49 prostate tissue 49 pancreatic cells 49 retina 49 synapse 48 autonomic nervous system 48 diaphragm 48 ventricles 48 forebrain 48 NMDA receptors 48 profoundly deaf 48 microcirculation 48 oligodendrocytes 48 Implanted 48 proprioception 48 Hearing aids 48 calcium ions 48 skeletal muscles 47 photoreceptor 47 mouse embryos 47 brain plasticity 47 nerve regeneration 47 implant 47 frontal lobe