Flashcards in 5:00 Swallowing Deck (63)
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1
Where is the oral vestibule?
The space between the lips and teeth
2
What are the two kinds of aspiration?
(2)
Food goes up the nose
Food goes down the lungs
3
What is silent aspiration?
Food goes down the lungs without the person realizing it.
4
What is the difference between striated & smooth tissue?
Striated is voluntary, smooth is involuntary
5
What part of the esophagus is composed of striated muscle?
The upper third
6
What part of the esophagus is composed of smooth muscle?
The lower two thirds
7
What innervates the esophagus?
Vagus & sympathetic divisions of the nervous system
8
Vagal activity increases ______.
Esophageal activity
9
What makes up the Upper Esophageal Sphincter (UES)?
(2)
Cricoid lamina
Cricopharyngeal muscle fibers (inferior constrictor)
10
What does the Upper Esophageal Sphincter (UES) do?
(2)
Prevents air from entering the esophagus during respiration
Prevents material from reflexing back up the esophagus and into the pharynx
11
What does the Lower Esophageal Sphincter (LES) do?
Prevents gastric reflux
12
What are the four phases of swallowing?
Oral Prep Phrase
Oral Transport Phase
Pharyngeal Transport Phase
Esophageal Transport Phase
13
What is the Oral Prep Phase?
(4)
Food enters mouth and is chewed
Bolus is prepped
Saliva is incorporated into food
Liquid is collected for drinking
14
What is the Oral Transport Phase?
Food is moved from the front of the mouth to the back of the mouth
15
What is the Pharyngeal Transport Phase?
(2)
Food is transferred to the pharynx towards the esophagus
The velopharyngus, vocal folds, and epiglottis are closed
16
What is the Esophageal Transport Phase?
Food is transferred into the esophagus
17
Which swallowing phases are voluntary?
(2)
Oral Prep Phrase
Oral Transport Phase
18
Which swallowing phases are involuntary?
(2)
Pharyngeal Transport Phase
Esophageal Transport Phase
19
What happens to the tongue during the Oral Prep Phase?
It is dished and moves posteriorly
20
What are the three types of salivary glands?
Submandibular (under jaw)
Sublingual (under tongue)
Parotid
(There are other smaller glands)
21
What does saliva do?
(4)
Maintains oral moisture
Reduces tooth decay
Assists in digestion
Holds bolus together
22
What are the two different kinds of saliva?
Viscous (watery)
Serous (thick & mucousy)
23
What happens during the Oral Phase?
(2)
Bolus is transported from anterior mouth to mid oral cavity via tongue
Tongue touches velum & faucial pillars triggering the velum
24
What triggers the Pharyngeal Phase?
The bolus passing over the back of the tongue
25
What happens during the Pharyngeal Phase?
(2)
Airway is protected
Bolus is moved
26
How is the airway protected during the Pharyngeal Phase?
(4)
Velopharynx is closed
Hyo-larynx is pulled up and forward
Vocal folds close
Eversion of the epiglottis
27
What makes the bolus move during the Pharyngeal Phase?
(3)
Peristalsis - progressive contraction of the pharynx
Pressure behind the bolus
Lubrication- serous saliva by the parotid glands
28
What is the path of the bolus during the Pharyngeal Phase?
(3)
It moves from the back of the tongue and valleculae
It separates into two equal parts and course around larynx & epiglottis through the pyriform sinuses
The two halves join once they reach the esophagus
29
What happens during the Esophageal Phase?
(4)
Upper esophageal sphincter is relaxed
Generation of low pressure in front of the bolus
Esophageal peristalsis (coursing contraction & relaxation
Dilation of the lower esophageal sphincter
30
