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Head and Neck > Week 9 - The oral cavity > Flashcards

Week 9 - The oral cavity Flashcards

1
Q

Where is oral vestibule?

A

-From the lips to the teeth, (including the alveolar mucosa, buccal gingiva, buccal mucosa)

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2
Q

Where is the oral cavity proper?

A

-From behind the teeth to the pharynx

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3
Q

Where is the nasopharynx?

A

-Section of the pharynx at the back of the nose upto the soft palate (in line with c1)

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4
Q

Where is the oropharyx?

A

-Part of the pharynx from the soft palate to the epiglottis (in ine with c2 and c3)

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5
Q

Where is the laryngopharynx?

A

-From the epiglottis to the oesophagus/trachea (in line with c4,5 and 6)

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6
Q

Where is the palatine tonsil?

A

-In between the anterior and posterior arch

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7
Q

What is the intermaxillary suture? Where is it made from?

A

-Groove in the midline of the hard palate produced by fusion of the two maxillary prominences of the 1st Ph A

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8
Q

From which bones does the soft palate hang?

A
  • Palatine bone
  • Lateral and medial pterygoid plates
  • Vomer
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9
Q

What is the cause of a claft palate/lip?

A

-Failed fusion of the maxillary prominences and the nasal prominences

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10
Q

What innervates the muscles of the soft palate?

A

-All innervated by vagus except veli palatini

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11
Q

What is the clinical significance of the majority of the soft palate being innervated by vagus?

A

-Deviated uvula (from the root) denotes a lesion of the vagus nerve. It will be deviated away from the effected side due to unopposed pull

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12
Q

Which muscle of the soft palate lies over the anterior arch?

A

-Palatoglossus

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13
Q

Which muscle of the soft palate overlies the posterior arch?

A

-palatopharyngeus

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14
Q

Which muscle of the soft palate is also an extrinsic muscle of the tongue?

A

-Palatoglossus

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15
Q

Why is anaphalaxis of concern regarding the oral cavity? How is suffocation prevented?

A
  • Inflammation of the oropharynx results in loss of airway patency as it is a small space
  • Steroids, antihistamines and endotracheal tube
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16
Q

What is the labial and lingual frenulum?

A
  • Labial frenulum between the labial gingiva and the lip

- Lingual frenulum between floor of mouth and tongue

17
Q

What is gingivitis?

A

-Inflammation of the gingiva

18
Q

What is the cause of being ‘tongue tied’? What problems can this cause for the neonate?

A
  • Abnormally attached lingual frenulum

- Can affect a baby’s ability to suckle and interfere with feeding

19
Q

Name the parotid duct

A

-Stensens duct

20
Q

Name the submandibular duct

A

-Whartons duct

21
Q

Name the teeth

A
  • Central incisor
  • Lateral incisor
  • Canine
  • 1st/2nd premolar
  • 1st/2nd/3rd molar (3rd is variable. Wisdom tooth!)
22
Q

How is the tongue split anatomically?

A
  • Anterior 2/3

- Posterior 1/3

23
Q

Describe the motor innervation of the tongue

A

-All hypoglassal except palatoglossal which is vagus

24
Q

Describe the sensory innervation of the tongue

A
  • Anterior 2/3 -> lingual nerve (V3) = general sensory, chorda typani = special sensory
  • Posterior 1/3 -> glossopharyngeal =general and special
25
Q

Name the intrinsic muscles of the tongue and state their actions

A
  • Superior longitudinal -> curl sides up
  • Vertical -> flatten and broaden
  • Transverse -> pull sides in to protrude
  • Inferior longitudinal -> curl sides down
26
Q

What is the septum of the tongue?

A

-Point of attachment for all 4 intrinsic muscles

27
Q

In a hypoglossal lesion, to which side will the tongue point?

A

-To the side of the lesion (due to unopposed push from the opposite side)

28
Q

NAme the extrinsic muscles of the tongue

A
  • genioglossus
  • hyoglossus
  • styloglossus
  • palatoglossus
29
Q

What are taste buds?

A

-Papilla on the tongue formed by a special arrangement of mucosa to allow for special sense of taste

30
Q

Name the tonsils in walyders ring

A
  • palatine
  • lingual
  • tubal
  • adenoid
31
Q

What is the link between adenoids and otitis media?

A

-Repeated inflammation of the adenoids can lead to repeated blockage of the eustachian tube causing repeated episodes of otitis media

32
Q

What is a quincy?

A

-Infection in the tonsil which has passed deep to the palatine tonsil and formed an abscess

33
Q

Why can a quincy be a clinical emergency?

A

-Risk of airway blockage as such a small space and also the abscess is poor healing

Head and Neck (18 decks)

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