Students in the major take courses in speech pathology, audiology, the speech mechanism and phonetics.
2.
Naturally, abnormalities in speech mechanisms would need to be ruled out by a medical professional.
3.
Similarly, malformation or malfunctioning of the respiratory system or speech mechanisms may result in speech impairments.
4.
In the dream sequence in question, Marina's lips do not move because her puppet was not equipped with a speech mechanism.
5.
"If learning language were a process of gaining control over the human speech mechanism, then a child learning sign language should show a completely different timetable, " she said.