Mackenzie Beck, Janet2018-06-292018-06-292010-02Beck, J.M. (2010) ‘Organic variation of the vocal apparatus’, in W.J. Hardcastle, J. Laver, and F.E. Gibbon (eds) The Handbook of Phonetic Sciences. 1st edn. Wiley, pp. 153–201. Available at: https://doi.org/10.1002/9781444317251.ch5.Print ISBN: 9781405145909, Online ISBN: 9781444317251https://eresearch.qmu.ac.uk/handle/20.500.12289/2592https://doi.org/10.1002/9781444317251.ch5OxfordThis chapter contains sections titled: Introduction Life-Cycle Changes in the Vocal Apparatus Interpersonal Variation Variation Resulting from Trauma or Disease Conclusion ReferencesKeywords:Organic Variation Of Vocal Apparatus;Two Sources Of Variation In Speech Performance - PhoneticOrganic Factors;Phonetic Variation - From Differences In Individuals Using Vocal Apparatus;Organic Variation - Anatomical Features For Individual Differences In SizeShape;Phonetic Effects - TrivialObservable Through Acoustic Measurement;Vocal Apparatus Structure - Normal Life-CycleGenetic And Environmental FactorsOrganic Consequences Of Trauma;Soft Tissues - LungsBronchiolesBronchiTrachea;Soft Tissues - Vocal Folds;Skull - Two Parts CraniumFacial Skeleton;Sources Of Interpersonal Variation - Endogenous FactorsEnvironmental FactorsIntegration And Coordination Of Growthbook_sectionhttp://DOI: 10.1002/9781444317251.ch5