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SS > Oral cavity and submandibular gland > Flashcards

Oral cavity and submandibular gland Flashcards

1
Q

What is under the tongue (grays anatomy picture)

A 
Frenulum of tongue
Fimbriated fold
Opening of sublingual gland
Opening of submandibular gland
Sublingual caruncles
Sublingual fold
Deep lingual vein
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2
Q

Surface of the tongue (grays pic)

A 
Fungiform papillae
Filiform papillae
Foliate papillae
Vallate papillae
Foramen caecum
Pharyngeal part of tongue
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3
Q

Surface anatomy soft palate

A 
Uvula
Palatoglossal arch
Palatine tonsil
Palatopharyngeal arch
Posterior wall of oropharynx
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4
Q

Oral cavity boundaries

A 
Roof= hard and soft palate
Floor= muscular diaphragm and tongue
Walls= fascia and a layer of skeletal muscle (buccinator)
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5
Q

Bony roof of oral cavity

A

Maxillary
Horizontal part of palantine bone
Bit of sphenoid bone

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6
Q

Floor of oral cavity muscles

A

Mylohyoid muscle
Geniohyoid muscle
Tongue

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7
Q

Muscles of the tongue

A 
Extrinsic:
Palatoglossus
Styloglossus
Hyoglossus
Genioglossus
Intrinsic:
Superior longitudinal
Vertical,
Transverse
Inferior longitudinal
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8
Q

Mylohyoid origin insertion innervation

A

Most anterior
Originates on mylohyoid line of the mandible
Inserts posteriorly on the body of the hyoid bone
V3

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9
Q

Geniohyoid origin insertion innervation

A

Sits on top of myohyoid
Originates on inferior mental spines of the mandible
Inserts on body of hyoid bone
C1

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10
Q

Boundaries of triangular aperture

A

Free lateral border of mylohyoid
Superior constrictor of pharynx
Middle constrictor of pharynx

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11
Q

Contents of triangular aperture

A

Lingual artery and vein
Lingual, hypoglossal and glossopharyngeal nerves
Stylopharyngeus

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12
Q

Genioglossus origin insertion innervation

A

Sits on top of geniohyoid
O- superior mental spines of mandible
I- body of hyoid
Hypoglossal nerve

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13
Q

Motor Innervation of tongue muscles

A

All hypoglossal except palatoglossus-vagus

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14
Q

Why is the hyoglossus muscle an important landmark

A

Hyoglossus sits lateral to genioglossus
Lingual artery enters the tongue deep to the hyoglossus
Hypoglossal nerve and lingual nerve enter the tongue via the external surface of the glossus

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15
Q

Sensory innervation of the tongue

A

Anterior 2/3 Taste= chorda tympani
Sensation= lingual
Posterior 1/3 Glossopharyngeal

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16
Q

Taste innervation of the tongue

A

Anterior 2/3= Chorda tympani branch of facial nerve

Posterior 1/3= Glossopharyngeal

17
Q

three muscles closely related to submandibular gland

A

Mylohyoid, hyoglossus and posterior belly of digastric

18
Q

three nerves at risk when removing submandibular gland

A

Marginal mandibular branch of the Facial nerve-paralysis of lower lip muscles
Lingual-loss of taste to ant 2/3
Hypoglossal-dysarthria

19
Q

Where is submandibular gland

A

Deep part hooks around outside of mylohyoid and superficial part sits underneath mylohyoid

20
Q

Where does submandibular duct emerge and begin

A

Begins at superficial part but emerges from the deep part. Sublingual caruncle by the base of frenulum of the tongue

21
Q

What are those rough bits on the top of your mouth called

A

Palentine rugae

22
Q

Blood and nerves to the bony top of your mouth

A

Greater palantine artery
Nasopalantine nerve
Greater palantine nerve

23
Q

Muscles of the soft palate and innervation

A 
Tensor veli palatini V3
Levator veli palatini CN10
Palatopharyngeus CN10
Palatoglossus CN10
Musculus Uvulae CN10
24
Q

Lymphatic drainage of oral cavity

A

I and II on that weird numbered drawing of the neck

25
Q

What is found in the first potential space?

A

Hypoglossal, lingual and chorda tympani nerve
Deep lingual vein
Deep submandibular gland

26
Q

What is found in the second potential space?

A

Glossopharyngeal nerve, lingual artery and dorsal lingual vein

27
Q

Layers that need to be removed when removing submandibular gland

A

Skin
Subcutaneous fat
Platysma
Investing layer of deep fascia

28
Q

What runs across submandibular gland that would need to be divided

A

Facial vein and facial artery lie on the gland surface
Marginal mandibular nerve
Lymph nodes

29
Q

Incision location for submandibular gland

A

4cm below and parallel to lower mandibular border

SS (11 decks)

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