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Anatomy > Floor Of Mouth > Flashcards

Floor Of Mouth Flashcards

1
Q

What is the posterior border of the oral cav

A

Oropharyngeal isthmus - space bounded laterally by palatoglossal folds

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2
Q

What does the roof of the oral cav consist of

A

Hard and soft palate

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3
Q

What does the floor of the oral cav consist of

A

Tongue

Muscles of mouth

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4
Q

What bones makeup palate

A

2 palatine

2 maxilla

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5
Q

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

A

5 pairs of skeletal muscle

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6
Q

What are the landmarks of the lips

A

Upper and lower labial sulcus

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7
Q

What is the palatal mucoperiosteum

A

Covers hard palate

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

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8
Q

What is the lingual sulcus

A

Deepest part of area between tongue and teeth

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9
Q

What is the buccal sulcus

A

Deepest part of cheek part of vestibule

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10
Q

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

A

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

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11
Q

What are the labial frenula

A

Folds of mucosa

Connect alveolar mucosa to lips

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12
Q

Why is there red and pink mucosa

A

Red - thinner so oxygenated blood shines through more

Pink - thicker epi

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13
Q

What kind of epithelia is red and pink mucosa

A

Red - non keratinised stratified squamous

Pink - keratinised stratified squamous

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14
Q

What is the free gingival groove

A

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

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15
Q

What is attached gingivae and free gingivae

A

Attached - directly associated with alveolar bone

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

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16
Q

What is the gingival sulcus

A

The space where the probe goes

Between the tooth and the free gingivae

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17
Q

What is the mucohingival junction

A

Transition line between the gingivae and mucosa

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18
Q

What is the sublingual fold

A

Openings for ducts of sublingual glands

19
Q

Where is the lingual sulcus

A

Between the tongue and lower dentition

Deepest part of floor of mouth

20
Q

What are the sublingual papilla e

A

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

21
Q

What are the fimbriated folds

A

From development of the tongue
Embryo logical
No function

22
Q

How do the mylohyoid muscles join

A

Bilateral meet in midline by tendons interdigitations - raphe

23
Q

Where does the geniohyoid attach

A

From genio tubercles ( mental spines) to hyoid bone

24
Q

What are the functions of the tongue

A 
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
Q

Which areas of the tongue taste
Sweet/salt
Sourness
Bitterness

A

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

26
Q

What is the terminal sulcus

A

deep groove dividing anterior and posterior of tongue

27
Q

What su the vertical part of the tongue

A

The posterior 1/3rd

28
Q

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

A

In the oropharynx

29
Q

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

A

CN IX

30
Q

What tonsil is found under the mucosa of the posterior tongue

A

Lingual tonsil

31
Q

What is e horizontal part of the tone

A

Anterior 2/3rds

32
Q

What su the general sensation of the anterior tone

A

Mandibular div of trigeminal CN v3 and lingual nerve

33
Q

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

A

CN 7 via lingual nerve and chorda tympani

34
Q

Whatis the foramen caecum

A

Depression on dorsum of the tongue at the median sulcus

35
Q

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

A

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
Q

What are intrinsic and extrinsic muscles

A

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

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

37
Q

What are the intrinsic muscles of the tongue

A

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
Q

What is the palatine aponeurosis

A

Tendons of tensor palate muscles

39
Q

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

A

CN Xii except palatoglosses which is supplied by CN x

40
Q

What muscles are used to stick the tongue out

A

Genio glossus muscles contracting pushing tongue tip forward

41
Q

How do u clinically assess the CN Xii

A

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
Q

What are the functions of the oral cav

A

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
Q

What is the anterior border of the oral cav

A

Alveolar/dental

Arches of mandible and maxilla

Anatomy (44 decks)

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