Speech Mechanism and Sound Transmission

SPEECH MECANISM AND SOUND TRANSMISSION
4 partsof speech
Oral Cavity
Nasal Cavity
Pharinx
Larynx
Lips
Teeth
Alveolar Ridge
Hard Palate
Velum
Tongue
Mandible
Facial Muscles
It extends from the nostrils (nares) to pharynx (throat)
It is important in resonance by opening or closing of velopharyngeal port
Velopharyngeal valve or port is formed by the soft palate making contact with the pharyngeal wall
It must be closed for vowels and non-nasal consonants
It extends from the posterior portion of the nasal cavity downward through the back of the oral cavity to the larynx
Pharynx is a vertical tube with 3 parts
Naso Pharynx
Oropharynx
Laryngopharynx
2 Puposes of Larynx
Anatomy of Larynx
Prevent food from going into trachea
Create a constriction in vocal tract which produces a sound source for communication
Cricoid cartilage
Artynoid cartilages
Glottis
Vocal folds
Open (abducted)
Closed (adducted)
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