Rehabilitation Sciences 3061A/B Lecture : Learning about the Speech and Language Pathology profession (2nd lecture)
2 Jan 2012
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Biological foundations: y 3 important systems or mechanism. The articulatory mechanism: tongue, lips, mandible, palate, teeth. The nervous system: central nervous system, peripheral nervous system. Job #1 life support - inspire/expire at rest (passive) Job #2 breathing for speech: quick, large inspiration, slow, controlled, and sustained expiration, speech overlaid on this slow, controlled, and sustained expiration. Job #3 postural support: butterfly strap help with postural support with people with poor posture (spinabiphida, helps get you upright, once upright head support able to do its job, able to project clearer and speak. ** therefore postural support can be really important. Job #2 phonation = sound production: gives one sound (doesn t shape or change sound) y air driven through respiratory system through larynx to vibrate the vocal folds y still just sound not speech yet. Modifications that happen to sound as it passes through the pharyngeal, oral and nasal cavities.
