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COM - Neuro > Pharynx And Larynx - Stephens 3/24 > Flashcards

Pharynx And Larynx - Stephens 3/24 Flashcards

1
Q

Which stage of swallowing does elevation of the floor of the mouth and tongue to push food bolus into the oropharynx?

A

Oropharngeal

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2
Q

What stage of swallowing is synonymous with mastication?

A

Oral phase

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3
Q

What stage of swallowing does the oropharynx elevate and constrict around the bolus, propelling it down the esophagus?

A

Pharyngo-esophageal phase

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4
Q

The nasal cavity communicates with the nasopharynx via what?

A

Choanae

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5
Q

Oral cavity into the oropharynx via what?

A

Faucial isthmus

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6
Q

Nasopharynx into the oropharynx via what?

A

Pharyngeal isthmus

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7
Q

What forms the faucial isthmus?

A

Palatoglossal fold

Palatopharyngeal fold

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8
Q

Where does the laryngopharynx communicate with the oropharynx?

Esophagus?

A

Hyoid

C6

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9
Q

What is the major elevator of the pharynx?

Innervated by what?

A

Stylopharyngeus muscle

SVE fibers from CN 9

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10
Q

Where is retro pharyngeal space?

A

Bw the buccopharyngeal fascia and prevertebral fascia

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11
Q

What does the buccopharyngeal fascia cover?

What is embedded in the portion of the fascia covering the middle constrictor?

A

Outer surface of the buccinator muscle and pharynx

Pharyngeal plexus

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12
Q

What muscles are inner elevators of the pharynx?

A

Stylopharyngeus
Salpingopharyngeus
Palatopharyngeus

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13
Q

What are the pharyngeal constrictor muscles?

A

Superior, middle, and inferior constrictors

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14
Q

What muscle’s horizontal fibers comprise the cricopharyngeus muscle used during speech?

A

Inferior constrictor muscle

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15
Q

What muscle is attached laterally to the hyoid and posteriorly to the midline pharyngeal Raphe?

A

Middle constrictor muscle

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16
Q

The superior constrictor muscle is attached laterally to what?

Posteriorly to what?

A

Pterygomandibular Raphe

Midline pharyngeal Raphe

17
Q

Where is Zenker’s diverticulum located?

A

Above the cricopharyngeus and above upper sphincter of esophagus UES

18
Q

Where is Killian’s triangle?

A

Superior to the cricopharyngeus muscle and inferior to the inferior constrictor muscle

19
Q

Sensory innervation of the pharynx via what?

Motor innervation?

A

Glossopharyngeal n

Vagus n

20
Q

Sensory fibers of the gag reflex are conveyed by what?

What type of fibers?

A

CN 9

GVA fibers

21
Q

The efferent component of the gag reflex is mediated by the vagus nerve assisted by what?

A

Intercostal
Phrenic
Abdominal nerves

22
Q

What kind of joint is the cricothyroid joint?

A

Synovial

23
Q

What form the posterior attachment of the vocal ligaments?

A

Arytenoid cartilages

24
Q

During intubation of a patient the blade is often placed where?

A

Valleculae epiglottica

25
Q

What are the valleculae epiglottica separated from each other by?

How are they bounded?

A

Median glossoepiglottic fold

Lateral glossoepiglottic folds

26
Q

What is the only AB-ductor of the vocal cords?

A

Posterior cricoarytenoid m.

27
Q

What ADducts the vocal cords?

A

Lateral cricoarytenoid and arytenoideus

28
Q

What muscle increases vocal fold tension by tilting the thyroid cartilage forward?

What opposes this muscle?

A

Cricothyroid muscle

Vocalis muscle

29
Q

Tumors of the vocal fords result in what?

A

Dysphonia (hoarseness)

30
Q

After the RLN crosses the cricothyroid joint and enters the larynx, what is it now called?

What kind of fibers does it convey to laryngeal muscles?
Except what 1 muscle?

Where do these fibers originate?

A

Inferior laryngeal nerve

SVE
Cricothyroid muscle

Nucleus Ambiguus

31
Q

In the laryngeal expiration/cough reflex (LER/LCR) what nerve represents the afferent component?
Where do these afferent inputs travel to?

If this nerve is compromised, what can happen?

A

Internal branch of superior laryngeal nerve
NTS

Aspiration pneumonia

32
Q

What innervates the mucosa of the upper larynx above the level of the vocal cords?

Branches from what?

Conveys what type of fibers?

A

Internal branch of the superior laryngeal nerve

Vagus nerve

GVA fibers

COM - Neuro (13 decks)

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