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Anatomy of Phonation Chapter 4

Anatomy of Phonation Chapter 4. Perry C. Hanavan. Stars. Functions of Larynx. Phonation Sphincter Swallowing Aspiration (during swallow) Holding breath. Phonation. Phonation or voicing Vibrating the vocal folds in the larynx Video Stroboscopy of the Vocal Cords Subglottis. Phonation.

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Anatomy of Phonation Chapter 4

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  1. Anatomy of PhonationChapter 4 Perry C. Hanavan

  2. Stars

  3. Functions of Larynx • Phonation • Sphincter • Swallowing • Aspiration (during swallow) • Holding breath

  4. Phonation • Phonation or voicing • Vibrating the vocal folds in the larynx • Video Stroboscopy of the Vocal Cords • Subglottis

  5. Phonation • Voiced • Unvoiced • Subglottal

  6. Bernoulli • Bernoulli effect • Inverse relationship • Increase in air flow results in air pressure decrease • YouTube • YouTube

  7. Summary of Phonation • Phonation is the act of voicing • Vocal fold vibrates • Bernoulli effect • Interaction between subglottal pressure, elasticity of vocal folds, and Bernoulli

  8. Larynx • Musculo-cartilaginous structure located at upper end of trachea • Valve • Size varies with age and gender

  9. Question Which of the following cartilages of the larynx consist of pairs (2)? • Cricoid • Thyroid • Arytenoid • Corniculate • Epiglottis • Hyoid

  10. Question Which of the following is an osseous structure? • Cricoid • Thyroid • Arytenoid • Corniculate • Epiglottis • Hyoid

  11. Tour of Larynx • Cartilaginous structures • Cricoid • Thyroid • Arytenoid • Corniculate • Epiglottis

  12. Cricoid Cartilage

  13. Aryteniod Cartilages

  14. Crico-Arytenoid Articulation

  15. Thyroid Cartilage

  16. Thyroid/Cricoid Articulation

  17. Tour of Larynx • Cartilaginous structures • Cricoid • Thyroid • Arytenoid • Corniculate • Epiglottis

  18. Tour of Larynx • Cartilaginous structures • Cricoid • Thyroid • Arytenoid • Corniculate • Epiglottis

  19. Valleculae

  20. Valleculae

  21. Osseous Structure • Hyoid

  22. Question How many pairs of vocal folds do we have? • One • Two • Three • Four • Five

  23. Inside the Larynx • True vocal folds • False vocal folds • Laryngeal ventricle Zemlin: Tour of the Larynx

  24. Questions Draw or bring together? • Duct • Abduct • Adduct • Induct • Subduct

  25. Vocal Folds Vocal folds in action

  26. Vocal Folds

  27. Question Muscles that connect to the same structure are referred to as ________ muscles. • Trinsic • Intrinsic • Extrinsic • Cotrinsic • Subtrinsic

  28. Intrinsic Laryngeal Muscles Adducts vocal folds; X cranial nerve

  29. Question There is only one intrinsic tensor muscle of the larynx? True False

  30. Intrinsic Laryngeal Muscles Aux Add Add Aux Tense Tense

  31. Intrinsic Laryngeal Muscle • Only abductor • X cranial nerve

  32. Intrinsic Laryngeal Muscles

  33. Question The text book suggests there are 2 muscles of the vocal fold? True False

  34. Intrinsic Laryngeal Muscles • Thyrovocalis (vocalis) muscle tensor • Thyromuscularis muscle is relaxor • (debatable)

  35. Intrinsic Laryngeal Muscles

  36. Is it GERD or Is it?

  37. External Laryngeal Muscles

  38. External Laryngeal Muscles

  39. Vocal Cord Paralysis

  40. Intrinsic Muscles • Instant Anatomy • UAMS Anatomy • Intrinsic Muscles • Intrinsic Muscles • Disorders of Voice

  41. Extrinsic Muscles • Larynx Anatomy Made Easy • Extrinsic & Intrinsic Muscles • Discover the Larynx

  42. Joints • Discover the Larynx • Zemlin Slides

  43. Nerves • Discover the Larynx

  44. Common Disorders • University of Pittsburgh • Vocal Surgery • Pre-vocal surgery • Cancer • ENT Surgery

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