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Flashcards in Floor Of Mouth Deck (43):
1

What is the posterior border of the oral cav

Oropharyngeal isthmus - space bounded laterally by palatoglossal folds

2

What does the roof of the oral cav consist of

Hard and soft palate

3

What does the floor of the oral cav consist of

Tongue
Muscles of mouth

4

What bones makeup palate

2 palatine
2 maxilla

5

How many pairs of what muscles does the soft palate consist of

5 pairs of skeletal muscle

6

What are the landmarks of the lips

Upper and lower labial sulcus

7

What is the palatal mucoperiosteum

Covers hard palate
Don't have mucosa associated with underlying skeltL muscle but closely related to bone

8

What is the lingual sulcus

Deepest part of area between tongue and teeth

9

What is the buccal sulcus

Deepest part of cheek part of vestibule

10

What is the difference between upper labial alveolar mucosa and upper labialise mucosa

Upper labial alveolar mucosa - associate with alveolar bone, called this up to the canines then after this point it is known as buccal alveolar mucosa

Upper labial mucosa - not directly associated with alveolar bone

11

What are the labial frenula

Folds of mucosa
Connect alveolar mucosa to lips

12

Why is there red and pink mucosa

Red - thinner so oxygenated blood shines through more
Pink - thicker epi

13

What kind of epithelia is red and pink mucosa

Red - non keratinised stratified squamous
Pink - keratinised stratified squamous

14

What is the free gingival groove

Between free and attached gingivae - corresponds to base of gingival sulcus

15

What is attached gingivae and free gingivae

Attached - directly associated with alveolar bone
Free - not stuck to anything but is the superior extent of mucosa over tooth

16

What is the gingival sulcus

The space where the probe goes
Between the tooth and the free gingivae

17

What is the mucohingival junction

Transition line between the gingivae and mucosa

18

What is the sublingual fold

Openings for ducts of sublingual glands

19

Where is the lingual sulcus

Between the tongue and lower dentition
Deepest part of floor of mouth

20

What are the sublingual papilla e

Opening for the submandibular gland duct - next to frenulum of tongue

21

What are the fimbriated folds

From development of the tongue
Embryo logical
No function

22

How do the mylohyoid muscles join

Bilateral meet in midline by tendons interdigitations - raphe

23

Where does the geniohyoid attach

From genio tubercles ( mental spines) to hyoid bone

24

What are the functions of the tongue

Formation of food bolus.
Pushing food bolus to posterior part of oral cav ready to swallow
Keeping mouth clean
Speech
Tasting. And sensing food

25

Which areas of the tongue taste
Sweet/salt
Sourness
Bitterness

Sweet/salt – the tip
Sourness - the sides
Bitterness - the back

26

What is the terminal sulcus

deep groove dividing anterior and posterior of tongue

27

What su the vertical part of the tongue

The posterior 1/3rd

28

Where does the posterior 1/3rd of the tongue sit

In the oropharynx

29

What is the general sensation and taste innervated by at the posterior tongue

CN IX

30

What tonsil is found under the mucosa of the posterior tongue

Lingual tonsil

31

What is e horizontal part of the tone

Anterior 2/3rds

32

What su the general sensation of the anterior tone

Mandibular div of trigeminal CN v3 and lingual nerve

33

What gives the taste sensation to the anterior part of the tongue

CN 7 via lingual nerve and chorda tympani

34

Whatis the foramen caecum

Depression on dorsum of the tongue at the median sulcus

35

What are the four types of taste buds and what is the innervation of each

Vallate papillae v shape most post - CN IX
Foliate papillae at back on sides - CN VII
Filiform papillae the middle ones - CN V3
Fungiform papillae most anterior - CN VII

36

What are intrinsic and extrinsic muscles

Intrinsic - originate and insert within the tongue no hard tissue origin/insertion

Extrinsic - originate out with hard tissue structure and insert onto tongue

37

What are the intrinsic muscles of the tongue

Act to alter the shape of the tongue
Longitudinal muscles - make tongue short and thick
Transverse and vertical muscles - make tongue long and narrow

38

What is the palatine aponeurosis

Tendons of tensor palate muscles

39

What are almost all tongue muscles supplied by and what is the exception

CN Xii except palatoglosses which is supplied by CN x

40

What muscles are used to stick the tongue out

Genio glossus muscles contracting pushing tongue tip forward

41

How do u clinically assess the CN Xii

Ask out to stick tongue out and if both workin tongue should come out in middle/median
If the tongue goes to a side it's pointing to the aide which there is a fault

42

What are the functions of the oral cav

Prep food bolus for swallowing - mastication, teeth, saliva

Defence against ingestion of toxins/infection - tonsils lymphoid tissue, special sense of taste

Speech- oral and nasal sounds (soft palate) and articulation (tongue and lips)

43

What is the anterior border of the oral cav

Alveolar/dental
Arches of mandible and maxilla