Articulatory System- Physiology
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articulatory system shapes ___ for speech and has ___ functions
articulatory system shapes ACOUSIC EVENTS for speech and has BIO functions
the articulatory system is the
sound shaper
4steps of swallowing
oral prepatory oral transport pharyngeal transport esophogeal transport
oral preparatory step in swallowing
voluntary biting chewing salivation or drinking prep bulus for swallowing
what is a bulus
mass or water to swallow
muscles involved in oral prepatory
mandible- bite chew face- lip mvmt tounge- bulus manipulation
oral transport step in swallowing
voluntary moving bulus from oral cavity toward pharync
muscles involved in oral transport
tounge - push bulus into pharynx mouth- lip compress mandible- close oral opening
pharyngeal transport step in swallowing
involuntary moving bulus through pharynx to esophagus while protecting the airway
muscles invloved in pharyngeal transport
reflexes of… velum- close velopharyngeal port larynx- …. pharynx- catch bolus musle - stylogharyngeous
esophogeal transport step in swallowing
involuntary moves bolus through esophogus to stomach to start digestion
what is the 4 parts of the source filter theory
1- sound scource (voiced/less) are mod by characteristics of-> 2-filter (VT) combined with-> 3-noise source making-> 4- speech sounds
how does the vt act as a filter
complex glottal cycle -> filters freq natually tuned to ->filtered sound
in reality how does the vt act as a filter
its a tube that is always changing shape dirring speech
what is the result of the reality of the vt as a filter
we hear a cont changing speech sounds that also vary in pitch
what are the 3 ways the paryngeal cavity can change to “act as a filter”
lengthen diameter combo
How is the pharyngeal cavity shortened and what muscle
raise larynx suprahyoids
How is the pharyngeal cavity lengthened and what muscle
lowering larynx infrahyoids
what is the result of the paryngeal cavity lengthened
highlights LOW freq of voiced sound source in complex sound
what is the result of the paryngeal cavity shortened
highlights HIGH freq of voiced sound source in complex sound
how is the pharyngeal cavitys diameter narrowed and muscles
constricting the pharyngeal walls pharyngeal constrictors
how is the pharyngeal cavitys diameter widend and muscles
widen the pharyngeal walls relax pharyngeal constrictors add stylopharyngeous
what is the result of the pharyngeal cavity being narrowed
highlights high freq of voiced sound source
what is the result of the pharyngeal cavity being widened
highlights low freq of voiced sound source