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Swallowing > Efferent Control > Flashcards

Efferent Control Flashcards

1
Q

Temporalis

A

CN 5

Elevates, closes and retracts the mandible

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2
Q

Masseter

A

CN 5

Elevates and closes the mandible

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3
Q

Medial pterygoid

A

CN 5

Elevates and closes the mandible, brings it forward

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4
Q

Lateral pterygoid

A

CN 5

Opens mandible, protrudes, side to side motion

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5
Q

Obicularus oris

A

Facial CN 7
Opens, protrudes, twists lips
Creates a closed system to prevent food from falling out

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6
Q

Buccinator

A

Facial CN 7
Compresses teeth against cheeks
Keeps food on surface of the tongue so it doesn’t end up in the lateral sulci

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7
Q

Levator veli palatini

A

Vagus (10)

Elevates soft palate to create nasopharyngeal seal

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8
Q

Musculus uvulae

A

Vagus (10)
Shortens and raises the uvula
Aids in nasopharyngeal seal

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9
Q

Tensor veli palatini

A

Trigeminal (5)

Stretches/tenses soft palate

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10
Q

Hyoglossus

A

Hypoglossal (12)
Depression and flattening of the tongue
Fixed tongue = hyoid bone elevation
Fixed hyoid bone = retracts and depresses the tongue

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11
Q

Genioglossus

A

Hypoglossal (12)

Brings tongue forward, makes it concave, helping with bolus transport, forms floor of the mouth

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12
Q

Styloglossus

A

Hypoglossal (12) and accessory (11)
Elevates tongue and retracts during swallow
Primary driving force of bolus to back of oral cavity

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13
Q

Palatoglossus

A

Vagus and glossopharyngeal
Forms anterior faucial pillar, important for checking pre-swallow aspiration
Elevation of posterior portion of tongue, lowers palate and narrows fauces

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14
Q

Superior longitudinal

A

Hypoglossal (12)

Turns tip up and lateral margins up

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15
Q

Inferior longitudinal

A

Hypoglossal (12)

Shortens the tongue, turns tip down and lateral margins down

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16
Q

Transverse

A

Hypoglossal (12)

Narrows and elongates the tongue

17
Q

Verticalis

A

Hypoglossal (12)

Widens/flattens and shortens the tongue

18
Q

Superior and medial constrictor

A

Vagus
Contracts and moves the bolus to the esophagus
Acts like a pharyngeal stripping wave

19
Q

Inferior constrictor

A

Vagus
Contraction closes off entrance to esophagus
During swallow, it relaxes allowing water/food to pass into the esophagus

20
Q

Stylopharyngeus

A

Glossopharyngeal (9)

Shortens and elevates the pharynx

21
Q

Salpingopharyngeus

A

Vagus (10)
Elevates the pharynx and larynx
Helps open the Eustachian tube for equalizing pressure

22
Q

Palatopharyngeus

A

Vagus
Assists in vertical shortening of pharynx
creating nasopharyngeal seal

23
Q

Mylohyoid

A

Trigeminal (5)
Fixed jaw = elevates hyoid bone and tongue
Fixed hyoid = depresses jaw and moves hyoid anteriorly
Forms floor of the mouth

24
Q

Geniohyoid

A

Hypoglossal (12)

Draws hyoid bone up and forward, lowers jaw

25
Q

Anterior belly of digastric

A

Trigeminal (5)
Fixed hyoid bone = depresses jaw
Fixed jaw = elevates hyoid bone

27
Q

Posterior belly of digastric

A

Facial (7)

Elevates and retracts the hyoid bone

27
Q

Stylohyoid

A

Facial (7)

Elevates and retracts hyoid bone, positions it more anteriorly

29
Q

Cricopharyngeus

A

Vagus (10)
Closing muscle of the upper classes esophageal sphincter (relaxes to let bolus through)
Elevates the larynx, thyroid cartilage up to hyoid bone

30
Q

Thyroarytenoid

A

Vagus (10)

Shortens and thickens vocal folds, closes vocal folds for swallowing

31
Q

Transverse arytenoid

A

Vagus (10)

Adducts VF as a protective airway mechanism

32
Q

Lateral cricoarytenoid

A

Vagus (10)

Adducts VF as a protective airway mechanism

33
Q

Posterior cricoarytenoid

A

Vagus (10)

Abducts VF before and after swallows

34
Q

Thyroepiglottic

A

Vagus (10)

Helps invert the epiglottis

35
Q

Sternohyoid

A

C1-3
Pulls hyolaryngeal complex inferior and anterior
Contributes to UES opening
Depresses larynx during respiration

36
Q

Sternothyroid

A

C1-3
Pulls hyolaryngeal complex inferior and anterior
Contributes to UES opening
Depresses larynx during respiration

36
Q

Omohyoid

A

C1-3
Pulls hyolaryngeal complex inferior and anterior
Contributes to UES opening
Depresses larynx during respiration

37
Q

Thyrohyoid

A

Hypoglossal (12)

Elevates thyroid cartilage to the hyoid bone (depresses), elevates the larynx

Swallowing (7 decks)

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