In a message dated 4/4/2002 8:57:04 AM Central Standard Time,
dgrogan@e... writes:
> 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!
>
Sundberg (p.133).... this suggests that a raised larynx is generally
associated with a general muscle tension in the voice organ......
I looked at Zemlin also, and he states that extrinsic musculature plays a
part in adduction and pitch regulation but the relationships are so complex
that it is hard to determine the exact role of each group.
My conclusions come more from my work in dysphagia (swallowing disorders) in
which it is a well known fact that a raised larynx is a very important part
of the process. It not only helps open the upper esophageal sphincter but
relates to tightly closed folds and laryngeal vestibule.
Randy Buescher
|
