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head and Neck test 2 (Final) > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

What is the superior boundary (roof) of the oral cavity?

A

Hard and soft palate

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2
Q

What is the Inferior boundary (floor) of the oral cavity?

A

Mylohyoid muscle

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3
Q

What is the wall of the oral cavity?

A

Cheeks

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4
Q

What is the anterior and lateral boundaries of oral cavity?

A

Teeth with gingiva and alveolar processes

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5
Q

What is the posterior boundary of the oral cavity?

A

Palatoglossal fold (beginning of oropharynx)

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6
Q

Hard palate makes up _____ of the palate.

A

3/5

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7
Q

Hard palate seperates _____ and _____.

A

Respiratory and digestive tracts

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8
Q

What is the primary function of hard palate?

A

to isolate the mouth in suckling

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9
Q

Oral side of hard palate contains _____ _____ _____.

A

palatine mucous glands

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10
Q

Hard palate is lined by ______ epithelium mucous membrane

A

non-keratinized stratified squamous

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11
Q

What is palatal rugae of the hard palate?

A

Transverse palatine folds on the anterior part

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12
Q

What is the shape/name of the sutures of the hard palate?

A

A cross, referred to as “cruciform suture”

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13
Q

Which suture of the Cruciform suture is this:
Between the palatine processes of the left & right maxilla and between the horizontal processes of the left & right palatine bones

A

Median palatine suture

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14
Q

Which suture of the Cruciform suture is this:

Between the horizontal plate of the palatine bone and the palatine process of the maxilla (palatomaxillary suture)

A

Transverse palatine suture

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15
Q

Soft palate is also called?

A

Velum

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16
Q

_____ hangs from the posterior border of the soft palate in the midline

A

Uvula

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17
Q

Soft palate is Lined by ______ epithelium, mucous membrane

A

non-keratinized stratified squamous

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18
Q

Aponeurosis of the ______ muscle continues from hard palate and forms structural support for the soft palate

A

tensor veli palatini

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19
Q

Which 2 muscles originate above the soft palate?

A
  • Levator veli palatini

- Tensor veli palatini

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20
Q

Which 2 muscles insert below the soft palate?

A
  • Palatoglossus

- Palatopharyngeus

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21
Q

Which muscle is completely contained within the palate?

A

Musculus uvulae

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22
Q

What is the innervation of Tensor veli palatini muscle?

A

Mandibular nerve (V3) of Trigeminal N.

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23
Q

Tendon of the tensor veli palatini muscle passes around the _____ of the medial pterygoid plate and becomes the palatine aponeurosis.

A

hamulus

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24
Q

What is the function of tensor veli palatini muscle?

A

Contraction tightens the palatine aponeurosis – tension of the palate and opening of the auditory tube

25
Q

Levator veli palatini muscle inserts perpendicularly into the _____ aponeurosis of the soft palate

A

Tensor

26
Q

What is the function of levator veili palatini muscle?

A

Elevates the palate to establish the nasopharyngeal seal and opens the auditory tube

27
Q

What is the innervation of the levator veli palatini muscle?

A

Pharyngeal plexus of Vagus nerve

28
Q

Uvulae muscles contract when palate is _____.

A

raised

29
Q

Uvulae muscles help establish the nasopharyngeal seal by _____ the posterior margin of the soft palate

A

tensing

30
Q

When only one uvulae muscles contract, it draws the uvula to the _____ side

A

same

31
Q

Uvulae muscles are innervated by?

A

Pharyngeal plexus of vagus nerve

32
Q

If uvula is drawn to the RIGHT side, vagus nerve is damaged on the _____ side.

A

LEFT

33
Q

Closure of nasopharyngeal isthmus by elevation of the palate –establishment of velopharyngeal seal–important in _____, _____ and _____.

A

swallowing, speaking and blowing

34
Q

In swallowing, the soft palate is _____ to prevent food

from entering the nasal cavity

A

raised

35
Q

During quiet respiration, the soft palate hangs _____.

A

vertically

36
Q

In swallowing, the soft palate is _____ to prevent food

from entering the nasal cavity

A

raised

37
Q

Closure of the oropharyngeal isthmus (fold) is by contraction of the _____ and _____ muscles (extrinsic muscles of the soft palate) against the base of the tongue –establishment of oropharyngeal seal – important in swallowing

A

palatoglossus and palatopharyngeal

38
Q

What are the 2 muscles that insert below the palate?

A

Palatoglossus and palatopharyngeus

39
Q

What is the origin of palatoglossus muscle?

A

Palatine aponeurosis and posterior aspect of hard palate

40
Q

What is the insertion of palatoglossus muscle?

A

Lateral aspect of tongue

41
Q

What is the function of palatoglossus muscle?

A

Raises tongue to close off oral cavity from oropharynx during swallowing and
depresses the soft palate.

42
Q

What is the innervation of palatoglossus muscle?

A

Pharyngeal plexus by way of the vagus nerve

43
Q

What is the origin of palatopharyngeus muscle?

A

Palatine aponeurosis (posterior edge of hard palate)

44
Q

What is the insertion of palatopharyngeus muscle?

A

Posterior aspect of thyroid cartilage, esophagus, lateral wall of pharynx

45
Q

What is the function of palatopharyngeus muscle?

A

Raises pharynx during swallowing (pulls walls of pharynx superiorly, anteriorly and
somewhat medially) and tenses soft palate.

46
Q

What is the innervation of palatopharyngeus muscle?

A

Pharyngeal plexus by way of the vagus nerve

47
Q

Which arteries supplies blood to the hard and soft palate, respectively?

A

Greater and lesser palatine branches of the descending palatine artery (of maxillary artery)

48
Q

Which arteries supplies blood to the lateral sections of the palate?

A

Ascending palatine branch and tonsillar branch of facial artery

49
Q

Which artery supplies blood to the pterygoid plexus and peritonsillar plexus?

A

Venous return

50
Q

Which 2 nerves carries general sense from the Hard palate?

A

Greater palatine nerve and nasopalatine nerve (Branches of maxillary nerve V2)

51
Q

Which nerve travels through the greater palatine foramen to get to the Hard palate for general sense?

A

Greater palatine nerve

52
Q

Which nerve travels through the incisive foramen to get to the Hard palate for general sense?

A

Nasopalatine nerve

53
Q

Which 2 nerves carries general sense from the Soft palate?

A

Lesser palatine nerve (branch of maxillary n.) and Glossopharyngeal nerve

54
Q

Which nerve travels lesser palatine foramen to get to the Soft palate for general sense?

A

Lesser palatine nerve

55
Q

Which nerve is responsible for gag reflex if pharynx is contacted?

A

Glossopharyngeal nerve

56
Q

Which nerve is responsible for reflex if Soft palate is contacted?

A

Trigeminal nerve

57
Q

Which 2 nerves are responsible for autonomic Innervation to the Hard and Soft Palate, glands and blood vessels?

A

Greater and Lesser Palatine Nerves

58
Q

Most muscles of the palate are innervated by the ______.

A

pharyngeal plexus, vagus nerve (CN X)

59
Q

Most muscles of the palate are innervated by the pharyngeal plexus, vagus nerve (CN X). Which muscle is the only one not? What innervates it?

A

Tensor veli palatini –by mandibular nerve (CN V3)

2

head and Neck test 2 (Final) (6 decks)

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