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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
Q

What is the insertion of the genioglossus muscle

A

Superior fibres - tip of tongue
Middle fibres - dorsum of tongue
Inferior fibres - body of hyoid bone

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26
Q

What is the action of the genioglossus muscle

A

Superior fibres - retracts tip of tongue
Middle fibres - depresses dorsum of tongue
Inferior fibres - advance hyoid bone

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27
Q

What is the origin of the hyoglossus muscle

A

Body and greater horn of hyoid bone

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28
Q

What is the insertion of the hyoglossus muscle

A

Lateral aspect of tongue

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29
Q

What is the action of the hyoglossus muscle

A

Retrudes tongue, draw sides of tongue downwards

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30
Q

What is the origin of the styloglossus muscle

A

Styloid process and stylohyoid ligament

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31
Q

What is the insertion of the styloglossus muscle

A

Lateral aspect of tongue

32
Q

What is the action of the styloglossus muscle

A

Retrudes tongue, draw sides of tongue downwards

33
Q

What is the origin of the Palatoglossus muscle

A

Soft palate

34
Q

What is the insertion of the Palatoglossus muscle

A

Dorsum and lateral aspect of tongue

35
Q

What is the action of the Palatoglossus muscle

A

Closes oropharyngeal isthmus

36
Q

Which 3 cranial nerves supply taste

A

Anterior 2/3rds facial
Posterior 1/3rd glossopharyngeal
Pharynx vagus

37
Q

Which nerve supply’s the general sensory mucosa of anterior 2/3rds of the tongue

A

Lingual branch of mandibular nerve

38
Q

Which nerve supply’s special sensory to the mucosa of anterior 2/3rds of tongue

A

Chorda tympani branch of facial nerve

39
Q

Which nerve supply’s the mucosa of posterior 1/3rd of tongue

A

Glossopharyngeal and vagus (superior laryngeal)

40
Q

What’s the main nerve supply to the tongue muscles

A

Hypoglossal

41
Q

What nerve supply’s the Palatoglossus of the tongue

A

Pharyngeal plexus (IX,X,IX)

42
Q

Which lymph nodes does the tip of the tongue drain to

A

Submental nodes

43
Q

Which lymph nodes does the rest of the anterior 2/3rds of the tongue go to

A

Submandibular nodes and deep cervical lymph nodes

44
Q

Which lymph nodes does the posterior 1/3rd of the tongue go to

A

Deep cervical lymph nodes

45
Q

What is the floor of the mouth lined with

A

Non keratinised stratified squamous epithelium

46
Q

What is the sublingual folds an opening for

A

Sublingual salivary glands

47
Q

What is the sublingual papilla openings for

A

Submandibular salivary glands

48
Q

Which 2 supra hyoid muscles are in the floor of the mouth

A

Geniohyoid muscle
Mylohyoid muscle

49
Q

What are the 4 pairs of suprahyoid muscles

A

Digastric
Mylohyoid
Geniohyoid
Stylohyoid

50
Q

What is the origin of the stylohyoid muscle

A

Styloid process

51
Q

What is the insertion of the stylohyoid muscle

A

Greater horn of hyoid

52
Q

What is the action of the stylohyoid muscle

A

Elevates hyoid bone

53
Q

What is the innervation of the stylohyoid muscle

A

Facial nerve

54
Q

What is the origin of the Geniohyoid muscle

A

Inferior genial tubercle of mandible

55
Q

What is the insertion of the Geniohyoid muscle

A

Body of hyoid bone

56
Q

What is the action of the Geniohyoid muscle

A

Elevates and protracts hyoid bone

57
Q

What is the innervation of the Geniohyoid muscle

A

Anterior rami of C1

58
Q

What is the origin of the Mylohyoid muscle

A

Attaches to mylohyoid line and body of hyoid bone

59
Q

What is the insertion of the mylohyoid muscle

A

Extends from body of mandible to hyoid bone
Medial fibres of two muscles form a midline raphe

60
Q

What forms the floor of the mouth

A

Paired mylohyoid muscles form the muscular floor

61
Q

What is the action of the Mylohyoid muscle

A

Elevates hyoid bone, base of tongue and floor of mouth

62
Q

What is the innervation of the mylohyoid muscle

A

Nerve to mylohyoid (CN V3)

63
Q

What is the origin of the digastric posterior belly muscle

A

Digastric notch of temporal bone at base of skull

64
Q

What is the insertion of the digastric posterior belly muscle

A

Intermediate tendon which passes through sling of fascia on grater horn of hyoid bone

65
Q

What is the action of the digastric posterior belly muscle

A

Raises hyoid bone

66
Q

What is the innervation of the digastric posterior belly muscle

A

Facial nerve

67
Q

What is the origin of the digastric anterior belly muscle

A

Intermediate tendon

68
Q

What is the insertion of the digastric anterior belly muscle

A

Digastric fossa of mandible

69
Q

What is the action of the digastric anterior belly muscle

A

Elevates hyoid bone

70
Q

What is the innervation of the digastric anterior belly muscle

A

Nerve to mylohyoid (CN V3)

71
Q

Where is the superficial part of the submandibular salivary gland located

A

Between mylohyoid and submandibular fossa of mandible

72
Q

Where is the deep part of the submandibular salivary gland located

A

Wraps around free posterior border of mylohyoid muscle in floor of mouth

73
Q

What is the blood supply of the submandibular salivary gland

A

Glandular branches of facial artery

74
Q

Where is the sublingual salivary gland located

A

Floor of mouth, medial to sublingual flossa of mandible, above mylohyoid muscle

75
Q

What is the blood supply of the sublingual salivary gland

A

Glandular branches of sublingual artery

76
Q

What is the pit in the posterior midline of the tongue known as

A

Foramen cecum

MCQ 1.1 (43 decks)

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