Swallow Physiology Flashcards

1
Q

What brainstem regions are responsible for sensory to trigger a swallow?

A

Nucleus tractus solitarius (nst) trigeminal nucleus

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2
Q

How is delay to swallow on set measured?

A

It is measured between two time points question. Time one is when the Bolus reaches the ramus of the mandible, time 2 is at hyoid burst.

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3
Q

What is considered a normal range for triggering a swallow?

A

Molfenter, -.22 to .54 sec

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4
Q

Can you comment on timing with laryngeal palpation

A

No, because you do not know how long the bolus has been at the base of the mandible without seeing it

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5
Q

What contributes to laryngeal vestibule closure?

A

Bio mechanical operation

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6
Q

What contributes to epiglottic inversion?

A

Epiglottis include the bolus, posterior lingual pressure & pharyngeal wall constriction.

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7
Q

What muscle contributes to laryngeal vestibule closure?

A

Contraction of the Aryepiglottic muscle

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8
Q

How is laryngeal vestibule closure measured?

A

Molfenter 2012 uses two time points: time one when it first closes and time to when it reopens. Time: .31-1.07 sec in healthy adults.

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9
Q

How is UES function measured?

A

It is measured by extent and duration. Duration of UES opening .21-.67 sec

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10
Q

What is the normal range of hyoid anterior movement?

A

7.6mm-18mm

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11
Q

What is the normal range for superior movement of the hyoid bone?

A

5.8mm-25mm

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12
Q

What is the superior movement of the larynx normal range?

A

21 mm - 34 mm

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