Physiology of larynx

Vocalization is achieved by the following main mechanisms
  • Speech nervous control centers in the cerebral cortex
  • Respiratory centers in the brain
  • Articular structures in the mouth and larynx which involves two main mechanisms
Articular structures

Phonation:
During normal breathing vocal cords which are responsible for phonation are wide open to allow passage of air. In phonation the vocal cords come together so as to allow passages of air between them to produce sound called phonation. The pitch of vibration is determined by the space between the vocal cords and the tightness of the cords themselves.

 

Articulation is produced by three organs

Finally the resonators of the sounds include

 

 

 

 

 

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