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SP16 - Anatomy, Exam 2 > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

What is the posterior boundary of the oral cavity?

A

Palatoglossal arch

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2
Q

What is the function of the soft palate?

A

Closes nasopharynx from oropharynx when swallowing

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3
Q

The hard palate is this portion of the oral cavity

A

Anterior 2/3

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4
Q

What muscle make up the palatine aponeurosis?

A

Tensor veli palatini m.

Palatoglossus m.

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5
Q

What is the function of the palatine aponeurosis?

A

Moves soft palate to close off oral cavity during swallowing

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6
Q

The muscular body of the soft palate

A

Levatro velipalatini m.

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7
Q

The tendon of the tensor palatini muscle is held in place by this

A

Pterygoid hamulus

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8
Q

What is the action of the levator veli palatini m.?

A

Raises the soft palate from the sides

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9
Q

Where is the levator veli palatini m. found?

A

Along the eustachian tube

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10
Q

Where does the descending palatine a. descend through?

A

Palatine canal

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11
Q

What are the two branches of the descending palatine a.?

A

Greater and lesser palatine aa.

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12
Q

What does the greater palatine a. supply?

A

Anterior palate

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13
Q

What does the lesser palatine a. supply?

A

Posterior palate

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14
Q

The ascending palatine artery is a branch of this

A

Facial a.

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15
Q

The palatine a. is a branch of this

A

Ascending pharyngeal a.

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16
Q

Venous drainage of the soft palate is supplied by these

A

Pterygoid and pharyngeal plexuses

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17
Q

Motor function to the soft palate are supplied by these nerves

A

Mandibular n.

Vagus n.

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18
Q

Preganglionic parasympathetic innervation to the soft palate is supplied by this nerve

A

Greater petrosal n.

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19
Q

The deep petrosal nerves supplies this to the soft palate

A

Postganglionic sympathetic innervation

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20
Q

The tensor veli palatini nerve is derived from this embryonic area

A

First pharyngeal arch

21
Q

The palatine tonsils are located behind this muscle

A

Palatoglossus m.

22
Q

Bleeding from this vein is common during tonsilectomies

A

Paratonsillar v.

23
Q

This nerve may be damaged during a tonsilectomy

A

CN IX

24
Q

The lingual nerve is a branch of this

A

CN V3

25
Q

Where does the lingual nerve emerge?

A

Between lateral and medial pterygoid mm.

26
Q

Where is the submandibular ganglion located?

A

Level of third molar

27
Q

The submandibular ganglion is suspended from this nerve

A

Lingual

28
Q

The submandibular gangion relays parasympathetic fibers from this nerve

A

Chorda tympani n.

29
Q

The parasympathetic fibers of the submandibualr ganglion travel to these glands

A

Submandibular

Sunlingual

30
Q

Where are the sympathetic fibers of the submandibular ganglion from?

A

External carotid plexus

31
Q

Where is the hypoglossal nerve located?

A

Deep to posterior belly of the digastric and styloidhyoid mm.

32
Q

The hypoglossal nerve ends here

A

Posterior tongue

33
Q

What is the function of the hypoglossal n.?

A

Motor innervation to posterior tongue

34
Q

What is the action of the glossopharyngeal n.?

A

Sensory innervation to posterior tongue

35
Q

What are the muscles of the tongue?

A 
Palatoglossus m.
Styloglossus m.
Hyoglossus m.
Genioglossus m.
Intrinsic mm.
36
Q

The intrinsic muscles of the tongue do this

A

Alter the shape of the tongue

37
Q

What is the action of the genioglossus m.?

A

Protrude tongue

38
Q

Unilateral paralysis of the nerve affects straight protrusion

A

CN XII

39
Q

Artery that supplies most of the superficial structures of the oral cavity

A

Facial a.

40
Q

What artery supplies the deep oral cavity?

A

Lingual a.

41
Q

What are the three branches of the lingual a.?

A

Dorsal lingual a.
Deep lingual a.
Sublingual a.

42
Q

What is the function of the chorda tympani n.?

A

Taste to anterior 2/3 of tongue

43
Q

The fibers of the chorda tympani n. travels with this

A

Lingual n.

44
Q

What is the function of the glossopharyngeal n.?

A

Taste and sensory to posterior 1/3 of tongue

45
Q

What is the function of the vagus n.in the oral cavity?

A

Taste ans sensory from root of tongue and epiglottis

46
Q

Nerve that supplies sensory to anterior 2/3 of tongue

A

Lingual n.

47
Q

The ASA and MSA are branches of this

A

Infraorbital a.

48
Q

The PSA is a branch of this

A

Maxillary a.

49
Q

The inferior alveolar a. is a branch of this

A

Maxillary a.

SP16 - Anatomy, Exam 2 (11 decks)

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