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Dysphagia > 17 components of swallowing per MBSImP > Flashcards

17 components of swallowing per MBSImP Flashcards

1
Q

Lip closure

A

Oral domain
Component one

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2
Q

Main muscles of lip closure

A

Group: Lips
Name: Orbicularis Oris
Innervation: Via CN VII (Facial)
Actions: To seal the lips and anterior oral containment

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3
Q

Tongue control during bolus hold

A

Oral domain
Component two

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4
Q

Main muscles of tongue control during bolus hold

A
  1. Group: Intrinsic muscles of the tongue
    Names: Superior and inferior longitudinal, vertical, and transverse
    Innervation: Via CN XII (Hypoglossal)
    Action: Shapes the tongue to hold and control the bolus
    2.
    Group: Soft palate muscle
    Name: Tensor veli palatini
    Innervation: Via CN V (Trigeminal)
    Actions: Stiffens the soft palate and facilitates posterior oral containment
    3.
    Group: Extrinsic muscles of the tongue
    Name: Palatoglossus
    Innervation: Via CN X (Vagus)
    Actions: Closes entry to the oropharynx via raising the back of the tongue and drawing down the palate to form the glossopalatal seal and facilitates posterior oral containment
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5
Q

Bolus preparation/mastication

A

Oral domain
Component three

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6
Q

Main muscles for bolus preparation/mastication

A

1.
Group: Muscles of mastication
Names: Massester (elevates the mandible to close the mouth), pterygoids(Medial= elevates mandible to close the mouth, Lateral=Side to side or rotary, movement of the mandible), and temporalis(elevates mandible to close mouth)
Innervation: Via CN V
Actions (above, next to each muscle)
2.
Group: Intrinsic muscles of the tongue (muscles above, same innervation)
Action: Moves the bolus to the surface of the teeth for chewing and assists in bolus formation

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7
Q

Bolus transport/lingual motion

A

Oral domain
Component four

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8
Q

Main muscles of bolus transport/lingual motion

A

Group: Intrinsic muscles of the tongue (muscles and innervation the same)
Actions: Presses the tongue against the palate to move bolus posteriorly and maintains cohesive shape of bolus b/w tongue and palate

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9
Q

Oral residue

A

Oral domain
Component five
NOT a physiologic action

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10
Q

Main muscles of oral residue

A

Group: Intrinsic muscles of the tongue (muscles and innervation the same as they have been)
Action: Collects and shapes the bolus, and then transports bolus posteriorly

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11
Q

Initiation of pharyngeal swallow

A

Oral domain
Component six
Sensory, not motor

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12
Q

Main sensory receptive fields

A
  1. Sensory receptive fields: Glossopharyngeal (faucil) arches, back of tongue
    Innervation: Via CN IX (Glossopharyngeal)
    Branch: Pharyngeal branch
    Action: Initiation of pharyngeal swallow
    2.
    Sensory receptive fields: Base of tongue, valleculae, epiglottis, pharyngeal wall, aryepiglottic folds, ventricular folds, arytenoids, true vocal folds, and pyriform sinuses
    Innervation: Via CN X (Vagus)
    Branch: Superior laryngeal nerve, internal branch
    Action: (same as above)
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13
Q

Soft palate elevation (retraction)

A

Pharyngeal domain
Component seven

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14
Q

Main muscles of soft palate elevation

A

Group: Muscles of the soft palate
Name: Levator veli palatini
Innervation: Via CN X (Vagus)
Action: Elevates, tenses, and retracts the soft palate against the posterior pharyngeal wall

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15
Q

Laryngeal elevation

A

Pharyngeal domain
Component eight

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16
Q

Main muscles of laryngeal elevation

A

1.
Group: Long pharyngeal muscles
Names: Stylopharyngeus (innervated by CN IX, shortens and widens the pharynx), salpingopharyngeus, palatopharyngeus (innervated by CN X, elevates the larynx)
2.
Group: Infrahyoid muscles
Name: Thyrohyoid
Innervation: Via C1 (Cervical spinal nerve 1)
Action: Elevates the thyroid cartilage to the hyoid

17
Q

Anterior hyoid excursion

A

Pharyngeal domain
Component nine

18
Q

Main muscle in the anterior hyoid excursion

A

Group: Suprahyoid muscles
Name: Geniohyoid
Innervation: Via C1 (Cervical spinal nerve 1)
Action: Anterior movement of the hyoid

19
Q

Epiglottic movement (inversion)

A

Pharyngeal domain
Component ten

20
Q

Main muscles in epiglottic movement

A

Group: Suprahyoid muscles
Names:
Geniohyoid (innervation via C1)
Mylohyoid (innervation via CN V)
Digastricus (innervation via anterior belly: CN V)
Action: Elevates and moves the hyoid anteriorly contributing to superior-anterior movement trajectory

21
Q

Laryngeal vestibular closure (height of the swallow)

A

Pharyngeal domain
Component eleven

22
Q

Main muscles of laryngeal vestibular closure (height of the swallow)

A
  1. Group: Intrinsic muscles of the larynx
    Names: Thyroarytenoid, lateral cricoarytenoid (down, inward, and forward rotation and approximation of the arytenoid cartilages to meet bulging epiglottic petiole associated with laryngeal elevation), and interarytenoid (adducts the true vocal folds and approximation of ventricular folds)
    Innervation: Via CN X
    2.
    Group: Muscles of the base of the tongue
    Names: Styloglossus (innervated via CN XII) and Palatoglossus (innervated via CN X)
    Action: Retracts the base of the tongue and assists in shielding the laryngeal inlet
23
Q

Pharyngeal stripping wave

A

Pharyngeal domain
Component twelve

24
Q

Main muscles in pharyngeal stripping wave

A

Group: Pharyngeal constrictor muscles
Names: Superior, middle, and inferior constrictor
Innervation: Via CN X
Action: Applies positive pressure generation to the bolus tail through sequential contractions (superiorly to inferiorly)

25
Q

Pharyngeal contraction

A

Pharyngeal domain
Component thirteen
Seen in A/P view

26
Q

Main muscles in pharyngeal contraction

A

1.
Group: Pharyngeal constrictor muscles (same as above, same innervation, and same action)
2.
Group: Long pharyngeal muscles
Names: Stylopharyngeus (innervated by CN IX, shortens and widens the pharynx) salpingopharyngeus, and palatopharyngeus (innervated by CN X and elevates the larynx)

27
Q

Pharyngoesophageal segment opening (PES)

A

Pharyngeal domain
Component fourteen

28
Q

Main muscle in pharyngoesophageal segment opening

A

Group: Pharyngoesophageal segment
Name: Cricopharyngeus
Innervation: Via CN X
Action: Tonically contracted at rest, but relaxes during swallowing to facilitate bolus passage

29
Q

Tongue base retraction

A

Pharyngeal domain
Component fifteen

30
Q

Main muscles in tongue base retraction

A

Group: Extrinsic muscles of the tongue
Names: Styloglossus (innervated via CN XII) and palatoglossus (innervated via CN X)
Action: Retracts the base of the tongue

31
Q

Pharyngeal residue

A

Pharyngeal domain
Component sixteen

32
Q

Main muscles in pharyngeal residue

A

1.
Group: Pharyngoesophageal segment
Name: Cricopharyngeus
Innervation: Via CN X
Action: Tonically contracted at rest, but relaxes during swallowing to facilitate bolus passage
2.
Group: Pharyngeal constrictor muscles
Names: Superior, middle, and inferior constrictor
Innervation: Via CN X
Action: Applies positive pressure generation to the bolus tail through sequential contractions (superiorly to inferiorly)
3.
Group: Muscles of the base of the tongue
Names: Hyoglossus and styloglossus (innervated by CN XII) and palatoglossus (innervated CN X)
Action: Retracts the base of the tongue

33
Q

Esophageal clearance (upright position)

A

Esophageal domain
Component seventeen

34
Q

Main muscles of esophageal clearance

A

Name: Longitudinal and circular muscles of the esophagus
Innervation: Via CN X and myenteric plexus
Action: Primary and secondary peristaltic contraction

Dysphagia (1 decks)

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