Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Ethmoid Bulla aka Oral Histology Exam 2 > 1 Overview of Oral Cavity and Oropharynx > Flashcards

1 Overview of Oral Cavity and Oropharynx Flashcards

1
Q

what begins as an ectodermal depression and represents the future oral cavity/mouth?

A

stomodeum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is surrounded by the frontonasal region and the maxillary and mandibular processes of PA1?

A

stomodeum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what develops as part of the pharyngeal tube and is endodermally derived?

A

oropharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what PA does the oropharynx arise predominantly from?

A

PA 2, 3, and 4 (with a minor contribution)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are the two parts of the oral cavity?

A
  1. oral vestibule
  2. oral cavity proper
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the space between the lips (labial), cheeks (buccal) and anterior tooth surface?

A

oral vestibule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

anterior and posterior boundary of the oral vestibule

A

anterior - lips

posterior - ramus of mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

lateral and medial boundary of the oral vestibule

A

lateral - cheeks

medial - anterior tooth/gingiva/dental arch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

function of the oral vestibule

A

chewing/mastication, speech

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

contents in the region of oral vestibule

A
  1. oral mucosa lining
  2. minor salivary glands of cheek and lips
  3. skeletal ms. of cheek and lips
  4. opening of parotid duct
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the oval shaped area enclosed by upper and lower dental arch and opens posteriorly to oropharynx?

A

oral cavity proper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

roof (superior) and floor (inferior) boundaries of the oral cavity proper

A

roof (superior) - hard and soft palate

floor (inferior) - tongue/floor of mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

anterior/lateral and posterior boundary of the oral cavity proper

A

anterior/lateral - dental arch

posterior - palatine arch/palatoglossal fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

function of oral cavity proper

A

mechanical and chemical digestion, bolus formation, and speech

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

contents of oral cavity proper (10)

A
  1. oral mucosa covers all structures except tooth
  2. alveolar process/dental arch of max and mand
  3. teeth/periodontium
  4. gingiva
  5. tongue (oral part)
  6. floor of mouth
  7. sublingual caruncle (ducts for submandibular and sublingual glands)
  8. hard and soft palate
  9. minor salivary glands of dorsum and ventral tongue and palatal mucosa
  10. retromolar trigone (small triangular area posterior to 3rd molar)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the passage from oral cavity to oropharynx

A

oropharyngeal isthmus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

superior and inferior boundaries of oropharynx

A

superior - soft palate

inferior - epiglottis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

anterior and posterior boundaries of oropharynx

A

anterior - oral cavity proper/palatoglossal fold/base of tongue

posterior - pharyngeal muscles and C2 and C3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

lateral walls of oropharynx

A

palatopharyngeal arch and tonsil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

contents of oropharynx (7)

A
  1. oral/pharyngeal mucosa covering structures
  2. minor salivary glands
  3. palatopharyngeal fold
  4. palatine tonsil/tonsillar fossa
  5. pharyngeal tongue - tongue base
  6. lingual tonsils
  7. skeletal muscles of pharyngeal wall
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what refers to a mucous membrane that lines a passageway leading to the outside surface of lines a hollow organ?

A

mucosa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Mucosa = _____ + _____

A

Mucosa = epithelium + variable amount of CT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Oral mucosal epithelium may be derived from ___ or ___ depending on location

A

ectoderm or endoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

T/F: oral mucosa includes regions of the lips thru oropharynx

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what are the general components of oral mucosa
1. oral epithelium 2. lamina propria 3. submucosa 4. skeletal muscle or bone
26
in relation to the oral mucosa... what is stratified squamous w/ variable amounts of keratinization?
oral epithelium
27
in relation to the oral mucosa... what is the underlying CT containing capillaries, ducts of salivary glands, and sensory receptors?
lamina propria
28
in relation to the oral mucosa... what is present in variable amounts, composed of LCT -> DICT, contains vessels, adipose, minor salivary glands, and sensory receptors?
submucosa
29
in relation to the oral mucosa... what lies deep to the mucosa?
skeletal ms. or bone
30
what is the region where the attached gingival mucosa reflects off bone and onto alveolar mucosa (transition point)
mucogingival fold
31
what is the region which lacks a submucosa and lamina propria attaches directly to periosteum of bone?
mucoperiosteum
32
what is the fold of oral mucosa anchoring the alveolar process to lip, cheek, or ventral tongue to floor of mouth?
frenulum
33
what epithelium is ALWAYS stratified squamous with variable amounts of keratinization?
epithelium associated w/ oral mucosa
34
amount of keratinization is usually correlated with what? how can it be altered?
correlated with primary function of area and can be altered based on external events
35
turnover of epithelium is slower in regions with what?
regions with kerainization
36
key features of SSNK
1. no stratum corneum 2. nuclei RETAINED in superficial layer
37
layers in SSNK from free surface to BM
stratum superficialis stratum inermedium stratum spinosum stratum basal
38
key features of SSPK
1. minimal to absent SC (keratin filaments) 2. nuclei RETAINED in superficial layer
39
layers in SSPK from free surface to BM
stratum superficialis stratum granulosum stratum spinosum stratum basal
40
key features of SSK orthokeratinized
1. stratum corneum present, nuclei LOST 2. keratin filaments visible on surface
41
layers in SSK - orthokeratinized from free surface to BM
stratum corneum stratum granulosium stratum spinosum stratum basal
42
3 types of oral mucosa
1. lining 2. specialized 3. masticatory
43
what mucosa is most moist due to secretions, is less exposed to abrasion, and is soft, pliable, and movable?
lining mucosa
44
location of lining mucosa
wide distribution majority of oral cavity and oropharynx
45
lining mucosa epithelium
SSNK
46
describe lining mucosa lamina propria
LCT high elastic fibers; well vascularized
47
describe lining mucosa submucosa
well developed and usually attached to underlying ms., highly flexible, and contains minor salivary glands
48
what glands are present in the submucosa of lining mucosa
minor salivary glands
49
what mucosa functions in mastication, and is firm and immobile?
masticatory mucosa
50
location of masticatory mucosa
hard palate, gingiva, and interdental papilla
51
masticatory mucosa epithelium
SSPK to SSK
52
describe lamina propria of masticatory mucosa
LCT w/ high dense collagen fibers attached directly to bone
53
what is LP bound directly to bone and is present in some regions of palate and gingiva?
mucoperiosteum
54
descrcibe submucosa of masticatory mucosa
thin to absent
55
what mucosa refers to the presence of surface elevations of mucosa known as lingual papillae
specialized mucosa
56
T/F: lingual papillae may contain taste buds
TRUE
57
location of specialized muocsa
dorsum of anterior 2/3 of tongue vermillion zone
58
specialized mucosa epithelium
SSK
59
specialized mucosa lamina propria
thin
60
specilized mucosa submucosa
thin to absent; minor salivary glands may be present, bound to skeletal ms
61
what type of glands may be found in specialized mucosa?
minor salivary glands
62
how many types of lingual papilla are there and their general function?
4 types surface elevations to aid in mixing food
63
are taste buds found on all lingual papillae?
NO! All except filiform

Ethmoid Bulla aka Oral Histology Exam 2 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions