5-4 swallow & cough Flashcards
mastication
chewing (voluntary)
bolus
food or liquid that’s been formed into a mass to ingest
deglutition
entire process of putting food into mouth to it entering the stomach
feeding
placing food in mouth
manipulation of food in oral cavity
includes oral stage of swallowing
oral phase - preparatory
voluntary mastication of bolus – mush food & reduce size
structures involved:
tongue
masseter
temporalis
lateral & medial pterygoid
buccinator
nasal breathing
larynx/pharynx at rest
oral phase - transit
voluntary movement of tongue propelling bolus towards pharynx
airway starts to close
structures involved:
larynx (begins to elevate)
tongue
pharyngeal phase
involuntary
transport bolus down throat
structures involved:
base of tongue
velum
hyoid
larynx
epiglottis
UES
esophageal phase
involuntary
transport bolus to stomach
controlled by auto nervous system, CNX
structures involved:
UES
LES
6 cranial nerves
CNV
CNVII
CNIX
CNX
CNXI
CNXII
dysphagia
difficulty w/ or disordered swallowing
penetration
contents enter larynx, above vocal folds
aspiration
contents enter the airway, below vocal folds
very bad
dystussia
difficulty w/ or disordered cough
inspiratory phase of cough
diaphragm contracts & expands
external intercostal muscles pull ribs up & out
stronger than tidal or speech inspiration
compression phase of cough
vocal folds adduct - build up subglottal pressure
expiratory muscles contract
very tight adduction
