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Anatomy > Pharyngeal Muscles > Flashcards

Pharyngeal Muscles Flashcards

1
Q

What are the Pharyngeal Muscles?

A

Superior Constrictor, Middle Constrictor, Inferior Constrictor, Stylopharyngeus

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2
Q

What is the origin of the Superior Constrictor muscle?

A

pterygoid hamulus, pterygomandibular raphe, and mandible

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3
Q

What is the origin insertion of the Superior Constrictor muscle?

A

pharyngeal tubercle of occipital bone

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4
Q

What is the innervation of the Superior Constrictor muscle?

A

Vagus (CN X) via Pharyngeal plexus

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5
Q

What is the blood supply of the Superior Constrictor muscle?

A

ascending pharyngeal artery

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6
Q

What is the action of the Superior Constrictor muscle?

A

constricts pharyngeal cavity

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7
Q

What is noteworthy about the Superior Constrictor muscle?

A

largest of constrictor muscles

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8
Q

What is the origin of the Middle Constrictor muscle?

A

hyoid bone

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9
Q

What is the insertion of the Middle Constrictor muscle?

A

middle pharyngeal raphe

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10
Q

What is the innervation of the Middle Constrictor muscle?

A

Vagus (CN X) via pharyngeal plexus

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11
Q

What is the blood supply of the Middle Constrictor muscle?

A

ascending pharyngeal artery

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12
Q

What is the action of the Middle Constrictor muscle?

A

constricts pharyngeal cavity

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13
Q

What is noteworthy about the Middle Constrictor muscle?

A

most intermediate in position and depth

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14
Q

What is the origin of the Inferior Constrictor muscle?

A

thyroid cartilage

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15
Q

What is the insertion of the Inferior Constrictor muscle?

A

middle pharyngeal raphe

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16
Q

What is the innervation of the Inferior Constrictor muscle?

A

vagus nerve (CN X) via pharyngeal plexus

17
Q

What is the blood supply of the Inferior Constrictor muscle?

A

ascending pharyngeal artery

18
Q

What is the action of the Inferior Constrictor muscle?

A

constricts pharyngeal cavity

19
Q

What is noteworthy about the Inferior Constrictor muscle?

A

most external of constrictor muscles

20
Q

What is the origin of the Stylopharyngeus muscle?

A

distal styloid process, stylohyoid ligament

21
Q

What is the insertion of the Stylopharyngeus muscle?

A

passes between superior and middle constrictors and inserts on thyroid cartilage

22
Q

What is the innervation of the Stylopharyngeus muscle?

A

CN IX glossopharyngeal nerve

23
Q

What is the blood supply of the Stylopharyngeus muscle?

A

ascending pharyngeal artery

24
Q

What is the action of the Stylopharyngeus muscle?

A

elevates larynx

25
Q

What is noteworthy about the Stylopharyngeus muscle?

A

derivative of third pharyngeal arch, only muscle innervated by IX

Anatomy (17 decks)

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