Physiology of Mastication & Deglutition Flashcards
1
Q
mastication
A
- preparation of food for swallow
- involved oral muscles, teeth, all articulators
2
Q
deglutition
A
swallowing
3
Q
dysphagia
A
disorders of swallowing at any stage in the process
4
Q
bolus
A
liquid or solid mass of food
5
Q
cricopharyngeus (CP)
A
the component of the inferior constrictor involved in the upper esophageal sphincter
6
Q
UES
A
upper esophageal sphincter
7
Q
pharyngoesophageal sphincter (PES)
A
upper esophageal sphincter, immediate esophageal region and immediate pharyngeal region
8
Q
rooting reflex
A
orienting toward direction of tactile of the mouth region
9
Q
sucking reflex
A
tongue protrusion and retraction in prep for receiving food
10
Q
developmental issues in neonates
A
- larynx is elevated (descends over 4 years)
- hyoid is elevated and forward
- epiglottis is visible
- velum is depressed during nursing
- no teeth - no mastication!
11
Q
sucking
A
- tongue protrudes
- presses on breast, extrudes milk
- reflexive, generally
- tongue protrusion is natural at this stage
12
Q
respiration
A
- ongoing during suck and swallow
- milk passes around epiglottis
- around larynx
- into esophagus
- airway is open but protected by anatomy
- velum is down, locked into tongue
- suck, swallow, breath, repeat
13
Q
as infant grows..
A
- larynx drops
- epiglottis drops
- teeth erupt
- teeth block anterior protrusion of the tongue, which supports retraction of the tongue during mature swallow
14
Q
stages of swallow
A
- oral preparatory stage
- oral stage
- pharyngeal stage
- esophageal stage
