Quick Access Dysphagia Flashcards
Abbreviated content from Lectures 1-8
The 5 stages of the swallow
- oral anticipatory
- oral preparation
- oral transit
- pharyngeal
- oesophageal
the primary role of the oral anticipatory stage
sensory/cognitive/emotive elements
the primary role of the oral preparatory stage
preparation of food and fluid for oral transit and initiation of the pharyngeal swallow
the primary role of the oral transit stage
posterior propulsion of bolus from oral cavity into pharynx following bolus preparation
the 2 primary roles of the pharyngeal stage
- Food passage: propels the bolus thru pharynx, thru the UES, to the oesophagus
- Airway protection: ensures food/drink does not enter the larynx, trachea or lungs (i.e. preventing penetration and aspiration)
the primary role of the oesophageal stage
to move bolus from UES to stomach for digestion
define the lip seal and what stage it is present.
when the lips seal around the bolus to prevent anterior spillage of bolus (1st of 4 valves, part of the pressure system) in the Oral Preparatory Stage
define the glossopalatal seal and what stage it is present.
tongue and palate contact seals the back of the oral cavity and prevents premature spillage into the pharynx in the Oral Preparatory Stage
define the buccinator press and what stage it is present.
cheek tension flattens the cheeks and keeps the bolus within the ‘dental vault’ in the in the Oral Preparatory Stage
define mastication and what stage it is present.
rotatory chewing to grind and crush bolus by teeth in the in the Oral Preparatory Stage
define the drop push and what stage it is present.
posterior propulsion of bolus from oral cavity into pharynx following bolus preparation in the Oral Transit Stage.
define BOT to PPW approximation and what stage it is present.
Base of tongue retracts and posterior pharyngeal wall moves forwards (BOT to PPW approximation) – this applies positive pressure on bolus, moving it rapidly through the pharynx into oesophagus
define hyolaryngeal excursion and what stage it is present
Larynx is drawn upwards and forwards (hyolaryngeal excursion) – helping to create negative pressure in the hypopharynx (below bolus)
define pharyngeal constriction and what stage it is present.
As bolus enters the pharynx the pharyngeal constrictor muscles sequentially shorten and narrow the pharynx in the pharyngeal stage.
define airway protection and what stage it is present.
has 2 parts Epiglottic deflection and Glottal closure (laryngeal constriction)
