Feeding & Swallowing
Introduction to Feeding & Swallowing
Glossary (<-- Click to enter)
Feeding
- Ideal posture: sit upright 90degree
Swallowing
- A programmed motor behaviour
- Oropharyngeal swallowing involves preparing or manipulating a bolus in the oral cavity, propelling it into the pharynx, and squeezing it through the pharynx to the esophagus without compromising the airway.
- Food and liquid is transported to the stomach for adequate nutrition and hydration.
4 phases of swallowing overlap considerably in a parallel processing paradigm:
Oral Preparatory Phase | Voluntary | Started before putting into the mouth Food is masticated, Mixed with saliva to form smooth & cohesive bolus |
Oral Phase | Voluntary | Bolus propelled from oral cavity to oropharynx |
Pharyngeal Phase | Involuntary | Bolus transported from oropharynx to oesophagus |
Oesophageal Phase | Involuntary | Bolus propelled through oesophagus (UES open) to stomach |
References:
Humbert, I. A. (2011). Stimulating Swallowing: Essential Central and Peripheral Nervous System Targets. ASHA Leader, 16(9), 10-13.
Rousseau, B., & Branski, R. (2018). Anatomy and physiology of speech and hearing. New York: Thieme.
Standring, S. (2012). Studyguide for Grays Anatomy: The anatomical basis of clinical practice by Standring, Susan, ISBN: 9781478418030: Study guide. Amazon. Retrieved from https://www.amazon.com/Grays-Anatomy-Anatomical-Clinical-Practice/dp/0702052302