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MCQ 1.1 > Tongue And Floor Of Mouth > Flashcards

Tongue And Floor Of Mouth Flashcards

1
Q

What is the tongue attached to

A

The floor of pharynx

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2
Q

What is the core of the tongue formed by

A

Skeletal muscle
Serous, mucous and seromucinous glands

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3
Q

What is the tongues anterior and posterior region separated by

A

Sulcus terminalis with foramen caecum at the apex

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4
Q

What are the 3 papillae on the anterior surface of the tongue

A

Filiform
Fungiform
Circumvallate

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5
Q

What is the papillae on the side of the tongue near the back called

A

Foliate papillae

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6
Q

What is the anterior 2/3rds of the tongue described as being

A

Thick keratinised and non keratinised stratified squamous epithelium
Mucosa bound to underlying musculature
Roughened keratinised surface

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7
Q

What is the posterior 1/3rd of the tongue covered with

A

Lymphoid follicles - large, smoother nodules

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8
Q

Where on the tongue are taste buds located

A

In troughs surrounding vallate papillae
Few on fungiform and foliate papillae
Few on soft palate posterior wall of pharynx and epiglottis

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9
Q

How is the ventral surface of the tongue described as

A

Thin stratified squamous non keratinising epithelium (lining)
Prominent vasculature in sub mucosa
Permeable to drugs

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10
Q

What are the 4 intrinsic muscles of the tongue

A

Superior longitudinal
Inferior longitudinal
Transverse
Vertical

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11
Q

What is the origin of the superior longitudinal muscle

A

Lingual septum and submucous fibrous layer

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12
Q

What is the insertion of the superior longitudinal muscle

A

Margins of tongue

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13
Q

What is the action of the superior longitudinal muscle

A

Raises tip and sides and shortens tongue

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14
Q

What is the origin of the inferior longitudinal muscle

A

Body of hyoid and base of tongue

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15
Q

What is the insertion of the inferior longitudinal muscle

A

Apex of tongue

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16
Q

What is the action of the inferior longitudinal muscle

A

Curls tip inferiorly, shortens tongue

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17
Q

What is the origin of the transverse muscle

A

Lingual septum

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18
Q

What is the insertion of the transverse muscle

A

Submucous fibrous layer

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19
Q

What is the action of the transverse muscle

A

Narrows and lengthens tongue

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20
Q

What is the origin of the vertical muscle

A

Superior surface of tongue

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21
Q

What is the insertion of the vertical muscle

A

Inferior surface of tongue

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22
Q

What is the action of the vertical muscle

A

Flattens and broadens tongue

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23
Q

What are the 4 extrinsic muscles of the tongue

A

Genioglossus
Styloglossus
Hyoglossus
Palatoglossus

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24
Q

What is the origin of the genioglossus muscle

A

Mental spine (mandible)

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25
What is the insertion of the genioglossus muscle
Superior fibres - tip of tongue Middle fibres - dorsum of tongue Inferior fibres - body of hyoid bone
26
What is the action of the genioglossus muscle
Superior fibres - retracts tip of tongue Middle fibres - depresses dorsum of tongue Inferior fibres - advance hyoid bone
27
What is the origin of the hyoglossus muscle
Body and greater horn of hyoid bone
28
What is the insertion of the hyoglossus muscle
Lateral aspect of tongue
29
What is the action of the hyoglossus muscle
Retrudes tongue, draw sides of tongue downwards
30
What is the origin of the styloglossus muscle
Styloid process and stylohyoid ligament
31
What is the insertion of the styloglossus muscle
Lateral aspect of tongue
32
What is the action of the styloglossus muscle
Retrudes tongue, draw sides of tongue downwards
33
What is the origin of the Palatoglossus muscle
Soft palate
34
What is the insertion of the Palatoglossus muscle
Dorsum and lateral aspect of tongue
35
What is the action of the Palatoglossus muscle
Closes oropharyngeal isthmus
36
Which 3 cranial nerves supply taste
Anterior 2/3rds facial Posterior 1/3rd glossopharyngeal Pharynx vagus
37
Which nerve supply’s the general sensory mucosa of anterior 2/3rds of the tongue
Lingual branch of mandibular nerve
38
Which nerve supply’s special sensory to the mucosa of anterior 2/3rds of tongue
Chorda tympani branch of facial nerve
39
Which nerve supply’s the mucosa of posterior 1/3rd of tongue
Glossopharyngeal and vagus (superior laryngeal)
40
What’s the main nerve supply to the tongue muscles
Hypoglossal
41
What nerve supply’s the Palatoglossus of the tongue
Pharyngeal plexus (IX,X,IX)
42
Which lymph nodes does the tip of the tongue drain to
Submental nodes
43
Which lymph nodes does the rest of the anterior 2/3rds of the tongue go to
Submandibular nodes and deep cervical lymph nodes
44
Which lymph nodes does the posterior 1/3rd of the tongue go to
Deep cervical lymph nodes
45
What is the floor of the mouth lined with
Non keratinised stratified squamous epithelium
46
What is the sublingual folds an opening for
Sublingual salivary glands
47
What is the sublingual papilla openings for
Submandibular salivary glands
48
Which 2 supra hyoid muscles are in the floor of the mouth
Geniohyoid muscle Mylohyoid muscle
49
What are the 4 pairs of suprahyoid muscles
Digastric Mylohyoid Geniohyoid Stylohyoid
50
What is the origin of the stylohyoid muscle
Styloid process
51
What is the insertion of the stylohyoid muscle
Greater horn of hyoid
52
What is the action of the stylohyoid muscle
Elevates hyoid bone
53
What is the innervation of the stylohyoid muscle
Facial nerve
54
What is the origin of the Geniohyoid muscle
Inferior genial tubercle of mandible
55
What is the insertion of the Geniohyoid muscle
Body of hyoid bone
56
What is the action of the Geniohyoid muscle
Elevates and protracts hyoid bone
57
What is the innervation of the Geniohyoid muscle
Anterior rami of C1
58
What is the origin of the Mylohyoid muscle
Attaches to mylohyoid line and body of hyoid bone
59
What is the insertion of the mylohyoid muscle
Extends from body of mandible to hyoid bone Medial fibres of two muscles form a midline raphe
60
What forms the floor of the mouth
Paired mylohyoid muscles form the muscular floor
61
What is the action of the Mylohyoid muscle
Elevates hyoid bone, base of tongue and floor of mouth
62
What is the innervation of the mylohyoid muscle
Nerve to mylohyoid (CN V3)
63
What is the origin of the digastric posterior belly muscle
Digastric notch of temporal bone at base of skull
64
What is the insertion of the digastric posterior belly muscle
Intermediate tendon which passes through sling of fascia on grater horn of hyoid bone
65
What is the action of the digastric posterior belly muscle
Raises hyoid bone
66
What is the innervation of the digastric posterior belly muscle
Facial nerve
67
What is the origin of the digastric anterior belly muscle
Intermediate tendon
68
What is the insertion of the digastric anterior belly muscle
Digastric fossa of mandible
69
What is the action of the digastric anterior belly muscle
Elevates hyoid bone
70
What is the innervation of the digastric anterior belly muscle
Nerve to mylohyoid (CN V3)
71
Where is the superficial part of the submandibular salivary gland located
Between mylohyoid and submandibular fossa of mandible
72
Where is the deep part of the submandibular salivary gland located
Wraps around free posterior border of mylohyoid muscle in floor of mouth
73
What is the blood supply of the submandibular salivary gland
Glandular branches of facial artery
74
Where is the sublingual salivary gland located
Floor of mouth, medial to sublingual flossa of mandible, above mylohyoid muscle
75
What is the blood supply of the sublingual salivary gland
Glandular branches of sublingual artery
76
What is the pit in the posterior midline of the tongue known as
Foramen cecum

MCQ 1.1 (43 decks)

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