Related by context. Frequent words. (Click for all words.) 65 cerebral cortex 64 cerebellum 61 frontal lobe 61 cortex 61 limbic system 60 temporal lobe 59 brain 56 frontal lobes 56 brainstem 54 brains 54 basal ganglia 52 cranium 51 frontal cortex 51 cortical 51 thalamus 51 prefrontal cortex 50 adrenal gland 50 visual cortex 50 lobe 49 gland 49 neocortex 48 salivary glands 48 nerve endings 48 hippocampus 48 hippocampal 48 duodenum 47 gonads 47 adrenal glands 47 neural pathways 47 lobes 46 sphincter 46 motor cortex 46 synapses 46 vagus nerve 46 autonomic nervous system 45 hypothalamus 45 intestines 45 synapse 45 amygdala 45 adrenal 45 striatum 44 circulatory system 44 nasal cavity 44 posterior 44 neural circuits 44 brain circuitry 44 prostate gland 44 optic nerves 44 tonsils 44 somatic 44 cerebral 44 internal organs 43 colon 43 subconscious 43 innards 43 neurones 43 pituitary 43 neurons 43 epithelium 43 pancreas 43 skeletal muscles 43 retinas 42 epidermis 42 mammary glands 42 thyroid gland 42 facial muscles 42 colons 42 insula 42 intestine 42 scrotum 42 subconscious mind 42 ventral 42 distended 42 attentional 42 neural 42 spinal column 42 necrotic 42 plasma membrane 42 anatomy 41 nether regions 41 nucleus accumbens 41 sensory input 41 overactive 41 glandular 41 sweat glands 41 digestive tract 41 chest cavity 41 neuron 41 muscles 41 neural connections 41 macula 41 fatty tissue 41 spinal cord 41 GI tract 41 excitability 41 nerve cells 41 sinuses 41 glands 41 bodily 41 testis 40 synaptic