Related by context. Frequent words. (Click for all words.) 63 reflexes 62 reflexive 55 instinctive 54 instinct 53 instinctual 48 twitching 48 twitch 48 knee jerk 47 reflexively 47 instinctively 47 Pavlovian 46 twitches 45 gag reflex 45 stimuli 45 impulse 44 muscle contractions 44 impulses 44 autonomic nervous system 44 sensory input 43 innate 43 kneejerk 43 instinctive reaction 43 triggers 42 atavistic 42 clumsiness 42 subconscious 41 visual stimuli 41 auditory 41 excitability 41 adrenal 41 recoil 40 unthinking 40 physiologic 40 repulsion 40 survival instinct 40 reactive 40 inborn 40 exhalation 40 sphincter 40 physiological 40 induces 40 nerve endings 39 spontaneous 39 solar plexus 39 senses 39 survival instincts 39 perceptual 39 instincts 39 sensory 39 brain 39 inhibitory 39 electrical impulses 39 neural 39 anticipatory 39 involuntary movements 39 stimulation 39 facial muscles 38 inertia 38 gut 38 feint 38 physiologically 38 arousal 38 visceral 38 secretions 38 aversive 38 mechanism 38 dexterity 38 numbs 38 adenosine 38 facial expression 38 parrying 38 intuition 38 unconsciously 38 overactive 38 proboscis 38 inhibition 38 numb 38 brainstem 38 hyperventilation 37 nerve 37 trigger 37 adrenalin 37 sweat glands 37 gestural 37 autonomic 37 sensations 37 alertness 37 quick reflexes 37 aggression 37 psychosomatic 37 postural 37 secretion 37 spasmodic 37 contortion 37 involuntary 37 cortex 37 spastic 37 gonads 37 histamine 37 haptic 36 tendency