Dysphonia
Problems co-ordinating throat and mouth muscles.
Problems co-ordinating throat and mouth muscles.
Spasticity, weakness and decreased coordination of throat and mouth muscles cause issues with pitch control, hoarseness, and nasality, which all fall under the dysphonia umbrella.
References:
National MS Society. Speech & Swallowing: the basic facts. Available at: https://www.nationalmssociety.org/NationalMSSociety/media/MSNationalFiles/Brochures/Brochure-Speech-Swallowing-BasicFacts-FINAl.pdf Accessed April 2020