What the Numbers Mean: An Epidemiological Perspective on Voice, Speech, and Language

Voice (or vocalization) is generated by airflow from the lungs as the vocal folds in the larynx are brought close together. Speech is the precisely coordinated muscle actions of the tongue, lips, jaw, and vocal tract (or speech articulators), which together shape air flow to produce the sounds of one's language.Language is a shared system for communicating and exchanging knowledge, feelings, thoughts, and beliefs.

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General: language language disorder speech disorder Speech Voice disorders Voice

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