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SF2- Exam 3 > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

What is the vestibule in terms of the oral cavity?

A

A slit-like space between lips/cheek and teeth.

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2
Q

What are the boundaries of the vestible?

A

Lateral

1) lips
2) cheek

Medial

1)Teeth

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3
Q

The vestibule and oral cavity proper communicate through the ___________.

A

retromolar space.

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4
Q

Lips are ______________epithelium but are not cornified so you can see the blood vessels under.

A

stratified squamous

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5
Q

The border of the lips is called _________

A

vermilion border.

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6
Q

Muscle fibers of the buccinator originate from the ____________, run anteriorly and blend with the orbicularis oris.

A

pterygomandibular raphe

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7
Q

Which two muscles attach to the pterygomandibular raphe?

A

Superior pharyngeal constrictory m.

Buccinator

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8
Q

These three muscles form a large muscular sphincter around the entrance to the oral tube

A

Buccinator

Obicularis Oris

Superior pharyngeal constrictor

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9
Q

During chewing, food is kept between the occlusal surfaces by the ____________ and _________.

A

buccinator; tongue

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10
Q

Food accumulates in the vestibule and may dribble out the corner of the mouth during chewing following lesions to CN _________.

A

VII

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11
Q

“Sunken Cheeks” Is Characteristic Of:

A

A) Starvation

B) Anorexia nervosa

C) Chronic disease ( eg., cancer)

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12
Q

The Parotid Duct Opens into the Vestibule Opposite the ____________.

A

2nd Maxillary Molar

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13
Q

What are the two types of gingivae?

A

2 types of gingivae:

1) attached (true)
2) loose (free-alveolar mucosa)

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14
Q

What are two types of gingivitis?

A
  • Chronic marginal gingivitis
    • characterised by redness, swelling and bleeding. It is essentially a reversible condition.
  • Acute necrotizing ulcerative gingivitis (ANUG)
    • The main features are painful, bleeding gums, and ulceration of inter-dental papillae (the sections of gum between adjacent teeth).
    • trench mouth
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15
Q

In what condition does infection involve alveolar bone?

A

PERIODONTIAL DISEASE

  • Periodontal disease is when the gums are slowly reabsorbed.
  • Major reason people lose teeth.
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16
Q

___________ is the major cause of tooth loss.

A

Periodontal disease

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17
Q

The oral cavity proper is represented by everything above the _________.

A

Mylohyoid muscle

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18
Q

The palatoglossal fold can be connected to the ____________ to form anterior boundary of oral cavity.

A

linear terminalis

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19
Q

The_______________ Separates oral cavity from oropharynx, the region of the gag reflex.

A

Palatoglossal Arch

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20
Q

Label

A
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21
Q

The Submandibular and Submental Spaces Are Inferior to the __________.

A

Mylohyoid​

NOTE: The submandibular and submental spaces are potential spaces that can fill up with infection

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22
Q

The ___________ Separates the Sublingual From the Submandibular & Submental Spaces

A

Mylohyoid

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23
Q

Label

A
24
Q

Mylohyoid line is like a watershed. Front teeth can have abscess that ruptures into __________ space, while back teeth ruptures into___________space.

A

sublingual ; submandibular

25
Q

What is Ludwig’s angina?

A
  • Bilateral infection in sublingual, submandibular

and submental spaces

  • Angina is a smothering type of pain. Spaces fill up with inflammation. Infection pushes tongue back that leads to asphyxiation “embarrassed airway”.
26
Q

The ___________ anchors the tongue to floor of the mouth.

A

lingual frenulum

27
Q

The ______________ is where the submandibular duct terminates.

A

sublingual papilla

28
Q

Label

A
29
Q

ANKYLOGLOSSIA

A
  • Tongue-tied
  • Lingual frenulum is short
  • Can be snipped at dental office to help patients talk better
30
Q

Sialolithiasis

A
  • Salivary stones
  • Can block secretion of saliva
  • Can cause pain
  • Can cause bad breath too.
31
Q

What are the contents of the floor of the mouth?

A

SALIVARY GLANDS

sublingual gland

submandibular duct

submandibular gland (deep part)

NOTE: The lingual nerve is lateral to the submandibular duct.

32
Q

Label

A
33
Q

Which structures can be found lateral to the hyoglossus muscle? What about laterally?

A

Lateral to Hyoglossus

  1. lingual n.
  2. CN IX
  3. CN XII
  4. Submandibular duct

Medial to Hyoglossus

  1. Lingual artery
34
Q

Lingual nerve is a branch of _______.

A

V3

35
Q

Circumvallate papillae are large papillae with taste buds innervated by _________.

A

CN IX.

36
Q

____________ is depression between larynx and base of tongue.

A

Vallecula

37
Q

Label

A
38
Q

The sulcus terminal divides the tongue into: root (posterior 1/3) in _________ and body (anterior 2/3) in _______.

A

oropharynx; oral cavity

39
Q

List innervation for each part of the tongue

A

NOTE: CN IX also innervates circumvallate papillae

40
Q

GVA &SVA fibers run in the __________ and terminate in the ___________.

A

solitary tract; solitary nucleus

41
Q

What are the three extrinsic tongue muscles?

A

Genioglossus

Styloglossus

Hyoglossus

NOTE: Palaglossus is innervated by CN X and is not considered a true tongue muscle.

42
Q

What is the function of genioglossus muscle?

A

genioglossus depresses & protrudes the tongue

*Only muscle that protrudes the tongue

43
Q

Geniopillo reflex.

A

If you stick out your tongue far enough your hair will stand up

44
Q

What are the functions of styloglossus and hyoglossus?

A

STYLOGLOSSUS

retracts & elevates

HYOGLOSSUS

retracts & depresses

45
Q

What is the function of the intrinsic muscles of the tongue?

A

These muscles change the shape of the tongue

*These muscles originate and insert into the tongue

46
Q

All muscles of the tongue are innerved by CNXII, except __________.

A

palatoglossus

47
Q

Which salivary glands are serous and which are mucous?

A

Parotid Gland

a) serous

Submandibular gland

a) serous & mucous

Sublingual Gland

a) mucous

48
Q

Nerve fibers for Parotid Gland

A
  • CN IX (lesser petrosal)
  • otic ganglion
  • auriculotemporal nerve
49
Q

Nerve fibers for the submandibular gland

A
  • CN VII (chorda tympani)
  • lingual nerve
  • submandibular ganglion
50
Q

Nerve fibers for the sublingual gland

A
  • CN VII (chorda tympani)
  • lingual nerve
  • submandibular ganglion
51
Q

Lymph nodes of lateral tongue drain into ___________

A

Submandibular nodes

52
Q

Lymph nodes from the middle of the tongue drain into ____________

A

Deep cervical lymph node

53
Q

The tip of the tongue drains into ____________

A

Submental nodes

54
Q

Submental nodes receives lymphatic drainage from the ____________ of the oral cavity.

A

central part of the lower ½

This includes: chin, lip, floor of mouth and tip of tongue.

55
Q

What parts of the oral cavity drain into the submental nodes?

A

a) tip of chin
b) lower lip
c) anterior floor of mouth
d) tongue* (tip)

56
Q

What parts of the oral cavity drain into the submandibular nodes?

A

a) palate
b) maxillary teeth
c) upper lip
d) vestibular gingivae
e) floor of mouth
f) cheek
g) tongue* (base)

57
Q

What parts of the oral cavity drain into the drain into the deep cervical nodes?

A

Mandibular teeth

Tongue

SF2- Exam 3 (12 decks)

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