Related by context. Frequent words. (Click for all words.) 64 nerve cells 64 sensory nerves 63 Immune cells 61 neurones 60 neurons 60 dendritic spines 59 Neurons 58 nerve endings 58 mesenchymal cells 57 oligodendrocytes 57 peripheral nerves 57 photoreceptor cells 57 nerve fibers 57 nerve impulses 57 fibroblast cells 57 dendrites 56 skeletal muscles 56 receptor proteins 56 neural tissue 56 tubules 56 auditory nerve 56 collagen fibers 56 NKT cells 56 neurochemicals 56 axons 56 sensory organs 55 retinal cells 55 neuronal cells 55 chemical messengers 55 dopamine neurons 55 sensory neurons 55 cranial nerves 55 neural connections 55 transplanted stem cells 55 brain 55 neural circuits 55 trigeminal nerve 55 astrocyte 55 eukaryotic cells 54 motor neurons 54 lymphatic vessels 54 forebrain 54 Treg cells 54 neuron 54 Adult stem cells 54 calcineurin 54 Dendritic cells 54 female reproductive tract 54 spinal nerves 54 diseased tissues 54 Langerhans cells 53 microelectrodes 53 neuronal cell 53 peripheral tissues 53 motile 53 dendrite 53 photoreceptors 53 Physiologically 53 lobules 53 cellular pathways 53 cells 53 myoblasts 53 biological molecules 53 epithelial cell 53 neural pathways 53 ADDLs 53 neuropeptides 52 electrical pulses 52 endosomes 52 rhodopsin 52 cytosol 52 amyloid deposits 52 bacterial toxins 52 mouthparts 52 muscle fibers 52 Wnt pathway 52 secretory 52 synaptic connections 52 RNA molecule 52 neurotransmitter acetylcholine 52 midbrain 52 neurotransmitter dopamine 52 tau protein 52 dopaminergic neurons 52 undifferentiated cells 51 anterior cingulate 51 blood vessels 51 Scar tissue 51 progenitor cell 51 keratinocytes 51 sensory nerve 51 sensory input 51 signaling molecules 51 synapses 51 motor neuron 51 amyloids 51 phloem 51 epithelial cells 51 calcium ions 51 excitatory 51 pluripotent cells