Randy said... ************************ Extrinsic musculature (suprahyoid muscles) are used in the act of swallowing to move the larynx superiorly and anteriorly which in turn creates a very tight closure of the folds (they close more tightly in this act than in any other). The excessively lifted larynx in singing approaches this position contributing to excessive tension and higher subglottal pressure. ***********************
David here:
Randy,
I hate to keep bothering you, but I have another question. I have read nowhere that the extrinsic muscles have anything to do with adducting the vocal folds. Can you give me a source? Thanks!
Randy also said... ************************* An excessively lowered larynx can do the same. Brodnitz (p. 83) speaks of this in Keep your Voice Healthy. In his discussion of covered singing, with an excessively lowered larynx, he states that measurements of airflow in this production are twice what they are in a more open manner of singing. The reason is because of greater tension of the outer laryngeal muscles and intrinsic ones also. The excessive recruitment of high larynx muscles will do the same. ***************************
David here:
When you say that an excessively lowered larynx can do the same, do you mean that it can cause a tight closure of the folds? I ask because you say Brodnitz says there is more airflow, which would indicate a weaker closure of the folds to me.
Thanks for the insight, David Grogan Marshall, Texas
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