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REPOSITORY - Head and Neck Anatomy > Oral Cavity, Tongue, Floor of Mouth > Flashcards

Oral Cavity, Tongue, Floor of Mouth Flashcards

1
Q

what are the boundaries of the oral cavity

A

hard and soft palate, tongue, cheeks

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2
Q

what does the dental arches separate the oral cavity into

A

oral vestibule and oral cavity proper

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3
Q

what is the oral fissure

A

opening between lips

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4
Q

what is the oral vestibule

A

space between teeth and cheeks

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5
Q

which arteries anastomose in the lips

A

superior and inferior labial arteries (from facial artery)

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6
Q

what is the nerve supply to the lips

A

trigeminal nerve (maxillary and mandibular)

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7
Q

where does the lymph drainage of the lips go to

A

submandibular and submental nodes

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8
Q

what is the main muscular component of the lips

A

orbicularis oris

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9
Q

what is the main muscular component of the cheeks

A

buccinator

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10
Q

what is the innervation of the cheeks

A

buccal branches of mandibular nerve

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11
Q

what is the blood supply to the cheeks

A

buccal branches of maxillary artery

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12
Q

what is the labial frenulum

A

mucosal fold connecting gingiva to lips in midline

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13
Q

what is the buccal frenulum

A

mucosal folds observed laterally

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14
Q

what is the floor of the mouth formed by

A

mylohyoid

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15
Q

where does the mylohyoid attach to

A

mylohyoid line and body of hyoid

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16
Q

what do the mylohyoids attach in the midline to

A

mylohyoid raphe

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17
Q

what is the mylohyoid supplied by

A

nerve to mylohyoid

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18
Q

which salivary gland wraps around the free edge of the mylohyoid

A

submandibular

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19
Q

what are the different types of papilla in the tongue

A

fungiform, foliate, vallate, filiform

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20
Q

where are the fungiform papilla

A

apex and margins of tongue

21
Q

where are the foliate papilla

A

lateral border of superior surface of tongue

22
Q

where are the vallate papilla

A

anterior to terminal sulcus ( posterior tongue )

23
Q

what is the only papilla that doesnt have taste budes

A

filiform

24
Q

what lies behind the terminal sulcus on the tongue

A

lymphoid nodules

25
Q

what are the lymphoid nodules collectively known as

A

lingual tonsils

26
Q

what is the midline of the tongue marked by

A

lingual frenulum

27
Q

what can be seen on each side of the lingual frenulum

A

lingual vein and sublingual and submandibular ducts

28
Q

what are the muscles of the tongue separated by

A

sagittal septum

29
Q

what are the intrinsic muscles of the tongue

A

superior longitudinal
vertical
transverse
inferior longitudinal

30
Q

what do the intrinsic muscles of the tongue do

A

change size and shape of tongue

31
Q

what do the superior longitudinal and inferior longitudinal muscles work together to do

A

make tongue short and thick and retract tongue

32
Q

what do the vertical and transverse muscles of the tongue do

A

make it long and narrow

33
Q

what are the extrinsic muscles of the tongue

A

palatoglossus
styloglossus
hyoglossus
genioglossus

34
Q

what do the extrinsic muscles of the tongue do

A

protrude, retract, elevate and depress the tongue

35
Q

where does the genioglossus attach

A

superior mental spines of mandible, hyoid bone

36
Q

what does the genioglossus do

A

protrudes tongue

37
Q

where does the genioglossus lie

A

superior to geniohyoid muscles

38
Q

where does the hyoglossus attach to

A

greater horn of hyoid and intrinsic muscles on lateral aspects of tongue

39
Q

what does the hyoglossus do

A

depress the sides of the tongue

40
Q

which artery supplies the tongue

A

lingual artery (from ECA)

41
Q

where does the lingual artery enter the tongue

A

between hyoglossus and genioglossus

42
Q

where do the hypoglossal and lingual nerve enter the tongue

A

on external surface of hyoglossus

43
Q

where does the styloglossus attach to

A

styloid process of temporal bone and intrinsic muscles of tongue

44
Q

what does the styloglossus do

A

elevates and retracts the tongue

45
Q

what does the palatoglossus attach to

A

palatine aponeurosis and intrinsic muscles on lateral surface of tongue

46
Q

what are the muscles of the tongue innervated by

A

hypoglossal nerve (palatoglossus supplied by vagus)

47
Q

what is the innervation for general sensation to the tongue

A

anterior 2/3 = mandibular
posterior 1/3 = glossopharyngeal

48
Q

what is the innervation for special sensation to the tongue

A

anterior 2/3 = facial nerve (chorda tympani)
posterior 1/3 = glossopharyngeal

49
Q

which veins drain the tongue

A

deep lingual and dorsal lingual

REPOSITORY - Head and Neck Anatomy (25 decks)

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