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Anatomy and Radiology Test 3 > Pharynx > Flashcards

Pharynx Flashcards

1
Q

3 parts of pharynx

A

Naso, oro, and laryngo pharynx

Communicate iwht respective areas

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2
Q

Fusion of Left and right pharyngeal musculature

A

Pharyngeal raphe

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3
Q

How does pharynx communicate with each area

A

Nasal - choanae
Oral - oropharyngeal junction
Larynx - laryngeal inlet

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4
Q

Superior constrictor arises from

A

Pterygoid hamuluas and pterygomandibular raphe

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5
Q

Pterygomandibular raphe runs from

A

Medial pterygoid plate of sphenoid to medial ramus of mandible

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6
Q

What arises from pterygomandibular raphe posteriorly/anteriorly

A

Posterior - superior constrictor

Anterior - buccinator muscle

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7
Q

Fascia at top of superior constrictor and what is it penetrated by?

A

Pharyngobasilar fascia

Auditory tube

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8
Q

Superior constrictor fuses to other side on the

A

Pharyngeal raphe

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9
Q

Superior constrictor attaches to

A

Occipital bone (pharyngeal tubercle)

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10
Q

Middle constrictor

A

From hyoid bone to enclose superior constrictor and atttach to pharyngeal raphe

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11
Q

What passes through gap between superior and middle constrictor?

A

Stylopharyngeus muscle

Glossopharyngeal nerve

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12
Q

Innervation of constrcitor muscles

A

Vagus

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13
Q

Palatopharyngeus muscle innervation and where does it run

A

From soft palate to lateral pharynx walls

Vagus

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14
Q

Salpingopharyngeus muscle

A

From auditory tube (taurus tubaris) and merges with pahryngeal wall
Vagus

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15
Q

Pharyngeal plexus formed by

A

Vagus
Glossopharyngeal
Postganglionic sympathetic from superior cervical ganglion

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16
Q

Motor fibers in pharyngeal plexus

A

All vagus except
Stylopharyngeus (CN 9-glossopharyngeal)
Tensor veli palatini (V3 - mandibular)

17
Q

Sensory fibers of pharyngeal plexus

A

Glossopharyngeal nerve

18
Q

Absence of gag reflex means

A

Could be due to sensory de-innervation of CN 9 or motor de-innervation of CN 10

19
Q

If palate is sagging then

A

De-innervation of CN 10 (no effect of 9)

Anatomy and Radiology Test 3 (11 decks)

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