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Yawn

A yawn is a reflex in vertebrate animals characterized by a long inspiratory phase with gradual mouth gaping, followed by a brief climax (or acme) with muscle stretching, and a rapid expiratory phase with muscle relaxation, which typically lasts a few seconds. For fish and birds, this is described as gradual mouth gaping, staying open for at least three…

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Action
Involuntary
Biological system
Nervous system
Duration
Usually 6 seconds
Health
Unaffected or beneficial
Method
Complete extension of jaw, inhalation, eyes close, stretching of the eardrum, exhalation
Organisms
Vertebrates

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Overview

Etymology

Proposed causes

Social function

Non-human

Culture

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Map overview Semantic statistics

Yawn

Nodes73
Edges72
Triples93
Avg. degree1.97
Density0.027397
Components1

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Yawn

Top relations

related to Etymology · 13
Yawn → English, Germanic, Greek, Latin, Middle English, Norse, Old English, Old Norse, Pandiculation, Proto-Indo-European, The English, The Germanic, The Latin
related to Further reading · 13
Yawn → Belknap Press, Beyond, Cambridge, Curious Behavior, Harvard University, Hiccupping, ISBN, Laughing, Mass, OCLC, Provine, Robert, Yawning
related to Non-human · 11
Yawn → Animals, Charles Darwin's, Emotions, Guinea, In, Mammals, Man, Siamese, Similarly, The Expression, This
related to Culture · 10
Yawn → Al-Bukhari's, An, Covering, Exorcists, For, Ibn Hajar, Islamic, Some, Thus, Yawning
related to External links · 9
Yawn → Causes, Cincinnati, Communications, Concerns, Mary Bridget Reilly, October, Real Yawner, Scholarpedia, University
related to Relation to empathy · 7
Yawn → Canidae, Domestic, Evidence, In, It, The, This
related to Social function · 7
Yawn → Garrett Norris, It, Norris, Research, Theories, We, With
Stimuli · 5
Yawn → Boredom, Fatigue, Others mirror neuron reflex, Sleepiness, Stress
has cause · 3
Yawn → One, There, Yawning
Action · 1
Yawn → Involuntary

Important terminology Word statistics

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Important terminology

yawning contagious may study also animals dogs species contagion social empathy one mouth often yawns others observed humans including human

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
YawnActionInvoluntary1.00infobox
YawnBiological systemNervous system1.00infobox
YawnDurationUsually 6 seconds1.00infobox
YawnHealthUnaffected or beneficial1.00infobox
YawnMethodComplete extension of jaw, inhalation, eyes close, stretching of the eardrum, exhalation1.00infobox
YawnOrganismsVertebrates1.00infobox
YawnStimuliFatigue1.00infobox
YawnStimuliBoredom1.00infobox
YawnStimuliStress1.00infobox
YawnStimuliSleepiness1.00infobox
YawnStimuliOthers mirror neuron reflex1.00infobox
Yawncausesone of three possible situations to occur0.90text
Yawnis areflex in vertebrate animals characterized by a long inspiratory phase with gradual mouth gaping0.90text

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