#unconditioned_reflex__unconditionedreflex__reflex__instinctive_reflex__instinctivereflex__innate_reflex__inborn_reflex__physiological_reaction__physiologicalreaction  an automatic instinctive unlearned reaction to a stimulus
  supertype:  #reaction.bodily_process__response  a bodily process occurring due to the effect of some foregoing stimulus or agent; "a bad reaction to the medicine"; "his responses have slowed with age"
  subtype:  #accommodation_reflex__accommodationreflex  reflex changes in the eyes that enable an object to be focused on the retina
  subtype:  #Babinski_reflex__Babinski__Babinski_sign  extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
  subtype:  #belch__burp__burping  a reflex that expels wind noisily from the stomach through the mouth
  subtype:  #eye_blink__eyeblink__blink__blinking__wink__winking__nictitation__nictation  a reflex that closes and opens the eyes rapidly
     subtype:  #palpebration  repeated blinking or winking (especially if uncontrolled and persistent)
  subtype:  #blush__flush  sudden reddening of the face (as from embarrassment or guilt or shame or modesty)
  subtype:  #vomiting__vomit__emesis__regurgitation__disgorgement__puking  the reflex act of ejecting the contents of the stomach through the mouth
     subtype:  #rumination  regurgitation of small amounts of food; seen in some infants after feeding
     subtype:  #hematemesis__hematemesi__haematemesis  vomiting blood
     subtype:  #hyperemesis__hyperemesi  severe and excessive vomiting
        subtype:  #hyperemesis_gravidarum__hyperemesisgravidarum  hyperemesis during pregnancy; if severe it can result in damage to the brain and liver and kidney
  subtype:  #defecation_reflex__rectal_reflex  normal response to the presence of feces in the rectum
  subtype:  #yawn__yawning  an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
     subtype:  #pandiculation  yawning and stretching (as when first waking up)
  subtype:  #electrical_shock__electric_shock__shock  a reflex response to the passage of electric current through the body
  subtype:  #fart__farting__flatus__wind__breaking_wind  a reflex that expels intestinal gas through the anus
  subtype:  #gulping__gulp  a spasmodic reflex of the throat made as if in swallowing
  subtype:  #knee_jerk__knee-jerk_reflex__patellar_reflex  a reflex extension of the leg resulting from a sharp tap on the patellar tendon
  subtype:  #light_reflex__lightreflex__pupillary_reflex__pupillaryreflex__miosis__myosis  reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
  subtype:  #mydriasis__mydriasi  reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
  subtype:  #micturition_reflex__micturitionreflex  relaxation of the urethral sphincter in response to increased pressure in the bladder
  subtype:  #pharyngeal_reflex__gag_reflex__gagreflex  normal reflex consisting of retching; may be produced by touching the soft palate in the back of the mouth
  subtype:  #pilomotor_reflex__pilomotorreflex__gooseflesh__goose_bump__goosebump__goose_pimple__goosepimple__goose_skin__gooseskin__horripilation  reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
  subtype:  #plantar_reflex__plantarreflex  flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of 2 years; under 2 years the results should be extension of the toes (Babinski reflex)
  subtype:  #rooting_reflex__rootingreflex  reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth of cheek
  subtype:  #startle__jump__start  a sudden involuntary movement: "he awoke with a start"
     subtype:  #startle_response__startleresponse__startle_reaction__startlereaction  a complicated involuntary reaction to a sudden unexpected stimulus (especially a loud noise); involves flexion of most skeletal muscles and a variety of visceral reactions
     subtype:  #startle_reflex__startlereflex__Moro_reflex  a normal reflex of young infants; a sudden loud noise causes the child to stretch out the arms and flex the legs
     subtype:  #flinch__wince  a reflex response to sudden pain
  subtype:  #stretch_reflex__stretchreflex__myotacticreflex  reflex contraction of a muscle when an attached tendon is pulled; important in maintaining erect posture
  subtype:  #suckling_reflex  reflex behavior in newborn mammals; includes finding and grasping the nipple in the mouth and sucking on it and swallowing the milk
  subtype:  #tremble__shiver__shake  reflex shaking caused by cold or fear or excitement
  subtype:  #sneeze__sneezing__sternutation  a symptom consisting of the involuntary expulsion of air from the nose
  subtype:  #hiccup__hiccough__singultus__singultu  (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion; "how do you cure the hiccups?"

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