Floor Of Mouth

Question 1

What is the posterior border of the oral cav

Answer 1

Oropharyngeal isthmus - space bounded laterally by palatoglossal folds

Question 2

What does the roof of the oral cav consist of

Answer 2

Hard and soft palate

Question 3

What does the floor of the oral cav consist of

Answer 3

Tongue

Muscles of mouth

Question 4

What bones makeup palate

Answer 4

2 palatine

2 maxilla

Question 5

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

Answer 5

5 pairs of skeletal muscle

Question 6

What are the landmarks of the lips

Answer 6

Upper and lower labial sulcus

Question 7

What is the palatal mucoperiosteum

Answer 7

Covers hard palate

Don’t have mucosa associated with underlying skeltL muscle but closely related to bone

Question 8

What is the lingual sulcus

Answer 8

Deepest part of area between tongue and teeth

Question 9

What is the buccal sulcus

Answer 9

Deepest part of cheek part of vestibule

Question 10

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

Answer 10

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

Question 11

What are the labial frenula

Answer 11

Folds of mucosa

Connect alveolar mucosa to lips

Question 12

Why is there red and pink mucosa

Answer 12

Red - thinner so oxygenated blood shines through more

Pink - thicker epi

Question 13

What kind of epithelia is red and pink mucosa

Answer 13

Red - non keratinised stratified squamous

Pink - keratinised stratified squamous

Question 14

What is the free gingival groove

Answer 14

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

Question 15

What is attached gingivae and free gingivae

Answer 15

Attached - directly associated with alveolar bone

Free - not stuck to anything but is the superior extent of mucosa over tooth

Question 16

What is the gingival sulcus

Answer 16

The space where the probe goes

Between the tooth and the free gingivae

Question 17

What is the mucohingival junction

Answer 17

Transition line between the gingivae and mucosa

Question 18

What is the sublingual fold

Answer 18

Openings for ducts of sublingual glands

Question 19

Where is the lingual sulcus

Answer 19

Between the tongue and lower dentition

Deepest part of floor of mouth

Question 20

What are the sublingual papilla e

Answer 20

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

Question 21

What are the fimbriated folds

Answer 21

From development of the tongue
Embryo logical
No function

Question 22

How do the mylohyoid muscles join

Answer 22

Bilateral meet in midline by tendons interdigitations - raphe

Question 23

Where does the geniohyoid attach

Answer 23

From genio tubercles ( mental spines) to hyoid bone

Question 24

What are the functions of the tongue

Answer 24

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

Question 25

Which areas of the tongue taste Sweet/salt Sourness Bitterness

Answer 25

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

Question 26

What is the terminal sulcus

Answer 26

deep groove dividing anterior and posterior of tongue

Question 27

What su the vertical part of the tongue

Answer 27

The posterior 1/3rd

Question 28

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

Answer 28

In the oropharynx

Question 29

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

Answer 29

CN IX

Question 30

What tonsil is found under the mucosa of the posterior tongue

Answer 30

Lingual tonsil

Question 31

What is e horizontal part of the tone

Answer 31

Anterior 2/3rds

Question 32

What su the general sensation of the anterior tone

Answer 32

Mandibular div of trigeminal CN v3 and lingual nerve

Question 33

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

Answer 33

CN 7 via lingual nerve and chorda tympani

Question 34

Whatis the foramen caecum

Answer 34

Depression on dorsum of the tongue at the median sulcus

Question 35

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

Answer 35

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

Question 36

What are intrinsic and extrinsic muscles

Answer 36

Intrinsic - originate and insert within the tongue no hard tissue origin/insertion Extrinsic - originate out with hard tissue structure and insert onto tongue

Question 37

What are the intrinsic muscles of the tongue

Answer 37

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

Question 38

What is the palatine aponeurosis

Answer 38

Tendons of tensor palate muscles

Question 39

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

Answer 39

CN Xii except palatoglosses which is supplied by CN x

Question 40

What muscles are used to stick the tongue out

Answer 40

Genio glossus muscles contracting pushing tongue tip forward

Question 41

How do u clinically assess the CN Xii

Answer 41

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

Question 42

What are the functions of the oral cav

Answer 42

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)

Question 43

What is the anterior border of the oral cav

Answer 43

Alveolar/dental | Arches of mandible and maxilla