21. In severe cases the patient loses phonation . 22. It is also the term used in linguistics for the most common phonation of vowels. 23. The redundant breathy phonation is minimized and lost in most dialects in the fifth phase. 24. One of the key functions of the larynx is phonation , the production of sound. 25. Injury to the external laryngeal nerve causes weakened phonation because the vocal folds cannot be tightened. 26. The voiceless ring and other phonation diacritics can be used in the same way if needed. 27. Along with the manner of articulation and the phonation , it gives the consonant its distinctive sound. 28. This is "'voiceless "'phonation , and is extremely common with obstruents. 29. Other such phonation types include breathy voice, or murmur; slack voice; and creaky voice. 30. The layered structure necessary for phonation will start to develop during the infancy and until the adolescence.
