Researchers in Iowa have discovered what makes a lion or tiger roar so effectively. Apparently, there is a layer of fat within large feline vocal cords that makes the vocal cords especially prone to vibrate easily with minimal exhalation effort.
What import does this have to humans?
Well, there are patients who have a very weak voice due to vocal cord atrophy as well as vocal cord paralysis. Standard interventions include voice therapy as well as surgical procedures using an implant or injectable material in order to “bulk” up the vocal cord.
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*This blog post was originally published at Fauquier ENT Blog*