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Anatomy Final > oral cavity > Flashcards

oral cavity Flashcards

1
Q

Identify

A

pterygoid hamulus

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2
Q

identify

A

palatine process of maxilla

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3
Q

identify black arrow and green arrow

A

black: horizontal plate of palatine bone
green: incisive foramen

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4
Q

red arrow

A

greater palatine foramen

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5
Q

identify green

A

lesser palatine foramina

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6
Q

What are the two portions of the mouth seperated by the teeth

A
  • oral vestibule: teeth to cheek
  • oral cavity proper: inside teeth
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7
Q

maxillary teeth are supplied sensory innervation by what nerve

A

superior alveolar nerves: numerous branches of CN V2

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8
Q

Sensory innervation to Mandibular teeth are supplied by what nerve

A

inferior alveolar nerve: primary branch of CN V3

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9
Q

Palate can be broken down into 2 sections, name them?

A
  • hard palate (anterior 2/3)
  • soft palate (posterior 1/3)
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10
Q

Identify A.

A

tensor veli palatini

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11
Q

identify E

A

Levator veli palatini

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12
Q

origin and insertion of tensor veli palatina and levator veli palatini

A

Origin: cartilagenous auditory (pharyngotympanic) tube

insertion: soft palate

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13
Q

Which palate muscle wraps around pterygoid hamulus

A

tensor veli palatini

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14
Q

Innervation and action of tensor veli palatini

A

N: CN V3

A: tense soft palate

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15
Q

innervation and action of levator veli palatini

A

N: CN X

A: elevate soft palate

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16
Q

If patient’s uvula is deviated, what does this signify?

A

vagus nerve impaired: levator veli palatini is not working. Uvula will point toward working side

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17
Q

identify green arrow

A

cartilagenous auditory (pharyngotympanic) tube

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18
Q

identify green box

A

palatoglossus m.

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19
Q

identify red box

A

palatopharyngeus m.

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20
Q

origin and insertion of palatoglossus and palatopharyngeus muscle

A

O: both originate on soft palate

I: Pg: lateral side of posterior tongue

Pp: lateral wall of pharynx

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21
Q

innervation and action of palatoglossus and paltapharyngeus

A

N: vagus n (CN X)

A: Pg: elevate tongue

Pp: elevate pharynx

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22
Q

What 2 arches are formed from the muscle pairs of bilat palatoglossus and palatopharyngeus m.

A

palatoglossal arch

palatopharyngeal arch

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23
Q

What lies between the palatoglossus and palatopharyngeus mm.

A

palatine tonsil

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24
Q

The descending palatine artery, A branch off of the maxillary artery, splits into what 2 arteries that supply the palate?

A
  • greater palatine artery: hard palate
  • lesser palatine artery: soft palate
25
Q

What branches off of the pterygopalatine ganglion innervate the palate

A
  • greater palatine nerve: hard palate
  • lesser palatine nerve: soft palate
26
Q

identify A and B

A

a: Lingual tonsil
b: valate papilla

27
Q

Intrinsic muscles of the tongue that provide fine control of tongue are innervated by what nerve

A

hypoglossal CN XII

28
Q

identify

A

Genioglossus m.

29
Q

green arrow

A

styloglossus m.

30
Q

blue arrow

A

hyoglossus m.

31
Q

palatoglossus m. is innervated by what ?

A

CN X

32
Q

deviated tongue signifies what?

A

lesion to hypoglossal nerve causing atrophy on ipsilateral side

33
Q

lingual artery comes off of what artery? What is a branch off of the lingual artery?

A
  • external carotid a.
  • deep lingual artery
34
Q

Where does the lingual vein come from? What is a branch off of the lingual vein

A
  • internal jugular vein
  • deep lingual vein
  • lie near the inferior surface of the tongue and can be used as a site of drug absorption
35
Q

what nerve supplies general sensory to anterior 2/3 tongue

A

lingual n. from CN V3

36
Q

what nerve supplies special sensory taste to anterior 2/3 tongue

A

chorda tympani (From CN VII) hitchhiking of lingual n.

37
Q

general sensory and special sensory (taste) to posterior 1/3 of tongue is supplied by what nerve

A

glossopharyngeal n. with small contribution from vagus (CN X)

38
Q

How can you differentiate betwwen lingual nerve and hypoglossal nerve (CN XII)

A

lingual nerve runs superiorly over lateral surface of hyoglossus m. whereas hypoglossal nerve runs inferiorly

39
Q

What 3 things run through the parotid gland

A
  • motor branches of facial nerve
  • retromandibular vein
  • external carotid artery
40
Q

identify

A
  • blue arrow: submandibular gland
  • red arrow: submandibular duct
41
Q

Name distinguishing features of submandibular duct

A
  • emerges from portion of gland superior to mylohyoid
  • corsses lingual nerve superiorly
  • empties via sublingual caruncle
42
Q

Name distinguishing features of sublingual gland

A
  • deep to mucosa of the floor of oral cavity
  • empties via numerous ducts in sublingual folds
43
Q

Name pathway of innervation to ssubmandibular and sublingual glands

A

CN VII-> chorda tympani n. -> hitch-hike on lingual n. (CN V3) -> submandibular ganglion (synapse)

  • direct branches to submandibular gland
  • back to lingual n. -> siblingual gland
44
Q

sympathetic innervation to salivary glands

A
  • via external carotid plexus
  • lingual and facial artery plexus
45
Q

The pharyngeal constrictors have what insertion and what innervation

A
  • insertion: midline pharyngeal raphe
  • innervation: vagus n
46
Q

Origin of the superior, middle, and inferior pharyngeal constrictor muscles

A
  • superior: pterygomandibular raphe
  • middle: greater horn of hyoid
  • inferior: thyroid and cricoid cartilage
47
Q

What is the weak point in pharynx in inferior constrictor called. What can happen here

A
  • Killian’s triangle
  • common site of esophageal diverticulum formation
48
Q

Red arrow? What is it innervated by

A
  • Salpingopharyngeus
  • vagus n.
49
Q

identify. What is it innervated by

A
  • palatopharyngeus m.
  • vagus n.
50
Q

identify. what is its innervation

A
  • stylopharyngeus m.
  • glossopharyngeal n.
51
Q

What structure lies in the nasopharynx and is the end of the cartilaginous auditory tube?

A

torus tubarius

52
Q

What nerves runs on the posterolateral surface of the stylopharyngeus m. in the oropharynx

A

glossopharyngeal (CN IX)

53
Q

What nerve supplies sensory innervation to pharynx

A

glossopharyngeal n (CN IX)

54
Q

What nerve supplies motor sensation to pharynx

A
  • vagus n (CN VII)
  • glossopharyngeal (CN IX) to stylopharyngeus
55
Q

What nerves supply gag reflex

A
  • sensory limb: CN IX
  • motor limb: CN X
56
Q

Lateral pharyngeal space

A

potential space between fascia surrounding pharynx

  • can easily collect infected material from oral cavity and palatine tonsils
57
Q

tonsilar ring contains what tonsils

A
  • palatine tonsils
  • lingual tonsils
  • pharyngeal tonsils
58
Q

Identify a and d

A

a: torus tubarius
d: salpingopharyngeal fold

Anatomy Final (14 decks)

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