intensified expiratory force

Map Branches

• lifting and tilting of the larynx
  • via contraction of:
    • suprahyoid muscle
    • Extrinsic laryngeal muscle
    • Pharyngeal muscles
• vocal fold closure for airway protection
  • achieved by contraction of:
    • intrinsic laryngeal muscles
  • Sustained with ass. of:
    • subglottic pressure
  • purpose:
    • resist penetration of foreign objects
• cough production
  • if penetration occurs:
    • aim
      • expel food/liquid from upper airway
    • two processes produce cough
      • intensified expiratory force
      • series of forceful vocal fold adductions

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