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Structure And Function 2-3 > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

Angina

A

Condition with intense pain

Strangling or choking

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2
Q 
Digastric
O
I
A
N
A

O: post belly=temporal bone (mastoid notch)
Ant belly= inner side of the mandible
I intermediate tendon/hyoid
A: open the mouth
N: V3/VII

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3
Q 
Mylohyoid
O
I
A
N
A

O: inner side of the mandible
I: midline of the hyoid
A: elevates the floor of the mouth in swallowing
N: V3

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4
Q 
Geniohyoid
O
I
A
N
A

O: inner side of the mandible above the mylohyoid
I: hyoid
A: elevates the hyoid and draws it forward
N: C1 hitchhiking with XII

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5
Q

Muscles of the tongue from top to bottom

A

Genioglossus
Geniohyoid
Mylohyoid
Digastric

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6
Q

Ludwigs Angina

A

Infection of the floor of the mouth (submandibular space), often due to the spread of infection from an accessed tooth

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7
Q

Midline of the tongue

A

Lingual frenulum

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8
Q

Sublingual papilla

A

Opening of the submandibular salivary gland

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9
Q

Fimbriated folds

A

Location of the lingual veins

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10
Q

Sublingual folds

A

Openings for sublingual salivary glands

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11
Q 
Genioglossus
O
I
A
N
A

O: genial tubercle of mandible
I: tongue to its dorsal surface
A: protrude
N: XII

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12
Q 
Hyoglossus
O
I
A
N
A

O: greater and lesser horns of the hyoid
I: lateral side of the tongue
A: depress
N: XII

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13
Q 
Styloglossus
O
I
A
N
A

O: styloid process of the temporal bone
I: lateral side of the tongue
A: draws tongue superiorly and posteriorly
N: XII

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14
Q

Damage to the LMN of CN XII results in the paralysis of what uncle of the tongue and what is the result of this

A

Genioglossus paralyzed and the tongue deviates towards the side of the lesion

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15
Q

Vertical muscles of the tongue function

Superior and inferior muscle fibers

A

Flatten and broaden the tongue

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16
Q

Longitudinal muscle fibers function

Fibers and posterior

A

Shorten tongue

17
Q

Transverse muscle fibers of the tongue fibers

A

Narrow the tongue

18
Q

Sensory innervation of the tongue

A

Ant to epiglottis=X-visceral sensory touch and taste
Post 1/3=IX
Ant1/3=VII-taste
V3-somatic sensory touch

19
Q

What is located at the palatoglossal arch

A

Site of the oropharyngeal membrane and is the boundary between the oral cavity and pharynx

20
Q

What is something unique about the lymphatic of the tongue

And what is the pattern of drainage

A

Lymph vessels of the tongue cross the midline: lesion may spread to the opposite side

Submental, submandibular, deep cervical

21
Q

Lingual nerve pathway

A

Arises from v3 and joined by the chords tympani (VII)

22
Q

Branches of VII in the facial canal (3 of them and what they do)

A
  1. Greater petrosal nerve-visceral motor parasympathetic to the lacrimal gland, mucous glands of the nose, and palate. Also visceral sensory to the nasopharynx
  2. Stapedial nerve- branchiomotor to the stapedius
  3. Chorda tympani- taste to the anterior 2/3 of the tongue, visceral motor parasympathetic to the submandibular, sublingual salivary glands
23
Q

Where does the chorda tympani cross in the ear

A

The middle ear through the tympanic cavity over the handle of the malleus

24
Q

What is the petrotympanic fissure

A

A place for the chorda tympani and anterior tympanic artery to run

25
Q

Where do the parasympathetics from the chorda tympani synapse

A

The submandibular ganglion and then send fibers ot the salivary glands

26
Q

Clinical correlate: severing the lingual nerve in the floor of the mouth

And what can cause it

A

Loss of taste and touch

1) V general sensation tot he anterior tongue
2) hitchhiking VII- taste fibers to the anterior tongue

Can be caused by an impacted molar tooth

27
Q

Where does CN IX leave the skull

A

Via the jugular foramen

28
Q

What muscle does CN IX course close to in the pharynx

A

The stylopharyngeus muscle between the superior and middle constrictor

29
Q

Clinical correlate of removal of the palatine tonsils

A

Can damage the glossopharyngeal nerve and cause loss of visceral sensation and chemical taste to the post 1/3 of the tongue

30
Q

2 branches of the lingual artery

A

Dorsal lingual artery and the sublingual artery

31
Q

Facial artery branches

A

1: ascending palatine artery
2: tonsil are branch (palatine tonsil)-can result in a extensive bleeding in a tonsillectomy

32
Q

What muscle does the submandibular salivary gland wrap around

A

The mylohyoid

Structure And Function 2-3 (14 decks)

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