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Head & Neck - Anatomy (Year 2) > W2: S7 - Oral Cavity, Palate and Oropharynx > Flashcards

W2: S7 - Oral Cavity, Palate and Oropharynx Flashcards

1
Q

What is the oral vestibule?

A

The space between the teeth and the cheeks

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2
Q

What is the name of the muscle that lies in the lateral walls of the oral cavity?

A

Buccinator

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3
Q

What is the nerve supply of the buccinator?

A

Facial

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4
Q

What muscle’s contraction causes closing/pursing of the lips?

A

Obicularis oris

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5
Q

What is the name of the posterior opening of the oral cavity?

A

Oropharyngeal isthmus

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6
Q

What are the functions of the tongue?

A

Moving food during chewing

Speech

Initiation of swallowing

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7
Q

What is the name given to the v-shaped sulcus that divides the tongue into an anterior 2/3rds and posterior 1/3rd?

A

Terminal sulcus

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8
Q

What is the foramen caecum an embryological artefact of?

A

It’s the site of formation and descension of the thyroglossal duct

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9
Q

What are the 4 types of papillae on the anterior tongue?

A

Filiform

Fungiform

Valate

Follate

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10
Q

Which of the three anterior tongue papillae have tastebuds?

A

Fungiform

Valate

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11
Q

What forms the surface projections of the posterior 1/3rd of the tongue?

A

Submucosal lymphoid tissue

  • Lingual tonsil
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12
Q

What lines the inferior surface of the tongue?

A

Smooth mucous membrane

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13
Q

What is the name of the fold of mucous membrane that fixes the tongue to the floor of the mouth?

A

Frenulum

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14
Q
A
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15
Q

What is the general sensory innervation of the anterior 2/3rds of the tongue?

A

Mandibular V3

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16
Q

What is the taste sensation of the anterior 2/3rds of the tongue?

A

Chorda tympani branch of facial

17
Q

What is the general sensory innervation of the posterior 1/3rds of the tongue?

A

Glossopharyngeal nerve

18
Q

What is the taste sensation of the posterior 2/3rds of the tongue?

A

Glossopharyngeal nerve

19
Q

What are the two types of muscles of the tongue?

A

Intrinsic

Extrinsic

20
Q

What is the definition of the intrinsic muscles?

A

Originate and insert inside the tongue

21
Q

What is the definition of extrinsic muscles of the tongue?

A

Muscles that attach to the tongue from surrounding bone or the soft palate

22
Q

Where are the intrinsic muscles mainly concentrated?

A

The dorsal surface

23
Q

What is the collective function of the intrinsic muscles?

A

Change the shape of the tongue

24
Q

Name the 4 extrinsic muscles of the tongue

A
  • Genioglossus
  • Hyoglossus
  • Styloglossus
  • Palatoglossus
25
Q

Identify the extrinsic muscles of the tongue

n.b. palatoglossus is not there

A
26
Q

What nerve innervates all the intrinsic and extrinsic muscles of the tongue except the palatoglossus?

A

Hypoglossal nerve

27
Q

What nerve innervates the palatoglossus?

A

Glossopharyngeal nerve

28
Q

What are the 3 main salivary glands?

A
  • Parotid
  • Submandibular
  • Sublingual
29
Q

What artery grooves the undersurface of the submandibular gland?

A

Facial artery

30
Q

What type of innervation do the cranial nerves give the salivary gland?

A

Parasympathetic

31
Q

What nerve supplies the parotid gland with parasympathetic innervation?

A

Glossopharyngeal

32
Q

What nerve supplies the submandibular gland with parasympathetic innervation?

A

Chorda tympani branch of facial

33
Q

What nerve supplies the sublingual glands with parasympathetic innervation?

A

Chorda tympani branch of facial

34
Q

Name the 5 muscles of the soft palate?

A

Tensor veli palatini

Levator veli palatini

Muscularis uvula

Palatopharyngeus

Palatoglossus

35
Q

What nerve supplies all the muscles of the soft palate?

A

Vagus

36
Q

What is the collective action of the palate muscles?

A

Closing the nasal passage during swallowing by raising the throat

37
Q
A

A - Palatoglossal fold

B - Palatopharyngeal fold

C - Oropharynx

D - Frenulum

E - Opening for submandibular and sublingual glands

F - Palatine tonsils

G - Uvula

38
Q

What structure lies between the two folds of mucosa overlying the palatoglossus and palatopharyngeus muscles?

A

Palatine tonsils

39
Q

What type of tissue makes up the palatine tonsils?

A

Lymphoid

Head & Neck - Anatomy (Year 2) (19 decks)

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