CSDL6 - 1 Anatomy of Phonation Phonation Respiration Energy...

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Unformatted text preview: 1 Anatomy of Phonation Phonation Respiration Energy source Phonation Voicing Product of the vibrating vocal folds Occurs within the larynx Source of the voice for speech Voiced sounds Produced by action of the vocal folds Examples: Voiceless sounds Produced without use of the vocal folds Examples: 2 Voiced and Voiceless Phonemes The Larynx Superior terminal of the trachea Unpaired, midline musculo-cartilaginous structure Composition Three unpaired cartilages Three paired cartilages Cartilages bound by ligaments Lined with mucous membrane 3 The Larynx Biological functions Prevents air from escaping the lungs Prevents foreign substances from entering the lungs Forcefully expels foreign substances Non-biological functions Sound generator Variable resistance to the flow of air The Larynx Supportive bone Cartilaginous framework Three unpaired, three paired cartilages Two joints Extrinsic laryngeal membranes and ligaments Intrinsic laryngeal membranes and ligaments Extrinsic laryngeal muscles Intrinsic laryngeal muscles 4 The Larynx The Hyoid Bone Union between the tongue and the larynx Supportive structure for the base of the tongue Larynx is suspended from this bone Only bone in the body that is not directly attached to any other bone U-shaped, open in the posterior Highly mobile structure Point of attachment for several muscles 5 The Hyoid Bone The Hyoid Bone Greater cornu Corpus (body) Lesser cornu 6 The Hyoid Bone Cartilaginous Framework of the Larynx Thyroid Unpaired Hyaline cartilage Cricoid Unpaired Hyaline cartilage Epiglottis Unpaired Elastic cartilage Arytenoid Paired Hyaline cartilage Corniculate Paired Elastic cartilage Cuneiform Paired Elastic cartilage 7 Cartilaginous Framework of the Larynx Cartilaginous Framework of the Larynx 8 Thyroid Cartilage Largest of the laryngeal cartilages Composed of two plates Thyroid laminae Plates fused midline Thyroid angle Posterior aspect is open Thyroid Cartilage Landmarks Superior cornu Inferior cornu Thyroid angle Thyroid notch Oblique line Triticial cartilage 9 Cricoid Cartilage...
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CSDL6 - 1 Anatomy of Phonation Phonation Respiration Energy...

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