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SPTH1103 > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

Anterior boundary of the oral cavity

A

Lips

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2
Q

Posterior boundary of the oral cavity

A

Ororpharynx

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3
Q

Superior border of the oral cavity

A

Palate

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4
Q

Inferior boundary of the oral cavity

A

Front of Mouth

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5
Q

Function of ridges on palate

A

Aids in mastication

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6
Q

Where is the palatine ralphe

A

The midline fusion of bone on palate

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7
Q

Function of palatoglossal arch

A

Palatoglossal attaches laterally the palate to the tongue

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8
Q

Function of the palatopharyngeal arch

A

Palatopharyngeal connects the palate to the pharynx

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9
Q

The function of the tensor veli palatini?

A

Tenses the palate, innervated by the trigemenimal nerve (CN5)

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10
Q

Function of levator veli palatini muscle and innervation?

A

Lifts the palate innervated by the pharyngeal branch of the vagus nerve

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11
Q

Where is the origin and insertion of the levator veli palatini muscle

A

Origin temporal bone and inserts into the palatine aponeurosis

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12
Q

Function of the palatoglossus muscle

A

Connects palate to the tongue, blocks off oropharynx, draws the soft palate inferiorly

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13
Q

What nerve innervates almost all muscles of the tongue

A

Hypoglossal nerve

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14
Q

What nerve innervates the palatoglossus

A

The pharyngeal branch of the vagus nerve

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15
Q

Three muscles that make up the floor of the mouth

A

Geniohyoid, Mylohyoid, and Diagastric (Anterior and Posterior belly)

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16
Q

Innervation of the geniohyoid muscle

A

Hypoglossal Nerve CN12

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17
Q

Innervation of the Mylohyoid muscle

A

Trigeminal Nerve CNV

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18
Q

Innervation of the Diagastric muscles, posterior belly and anterior belly

A

Posterior belly - CN7
Anterior Belly - CN5

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19
Q

Insertion of the Geniohyoid muscle

A

Inferior genial tubercles, inside of the mandible superior

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20
Q

Insertion of mylohyoid

A

Mandible

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21
Q

Origin of mylohyoid

A

Mandible,

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22
Q

Origin of posterior belly diagastric muscle

A

Mastoid notch of temporal bone

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23
Q

Origin of anterior belly diagastric muscle

A

Diagastric fossa of the lower border of the mandible

24
Q

Insertion of three muscles that make up the floor of the mouth (Geniohyoid, Mylohyoid, Diagastric)

A

Hyoid bone

25
Q

Function of geniohyoid muscle

A

Contributes to jaw opening if hyoid bone fixed

26
Q

Function of mylohyoid muscle

A

Elevates FOM and hyoid bone

27
Q

Function of diagastric muscles

A

Stabilises mandible and aids in elevating hyoid bone

28
Q

Origin of the styloglossus

A

Styloid process of the temporal bone

29
Q

Insertion of the styloglossus

A

Inserts in to the tongue

30
Q

Function of the styloglossus

A

Retrudes/retracts the tongue and elevates its lateral aspects (pulls the tongue back)

31
Q

Origin of the palatoglossus

A

Lower side of the soft palate (?)

32
Q

What does the palatoglossus run within

A

Palatoglossal fold

33
Q

Insertion of the palatoglossus muscle

A

Inserts into the sides and dorsum of the tongue posteriorly

34
Q

The function of the hyoglossus

A

Depresses and retracts the tongue

35
Q

The function of the palatoglossus

A

Retracts the tongue

36
Q

Name the muscle in the tongue: runs from the epiglottic region forwards to the tip of the tongue, with bundles fanning out on either side to the mucosa of the upper lateral surfaces

A

The superior longitudinal muscle

37
Q

Name the muscle in the tongue: Runs from epiglottic region forwards to tip of tongue under the surface of the tongue

A

Inferior longitudinal muscle

38
Q

Name the muscle in the tongue: Originates from the midline septum and runs lateraly and upwards to the mucosa at the sides and dorsum of the tongue

A

Transverse muscle

39
Q

Name the muscle in the tongue: Originates from the mucosa on the dorsum and runs downwards and laterally to the sides of the tongue

A

The vertical muscle

40
Q

What is the mucous membrane

A

The surface on the tongue which has the papillae, is derived from the floor of the primitive pharynx, is supplied from 3 different cranial nerves

41
Q

Muscles involved in the elevation of the hyoid (Suprahyoid)

A

Diagastric, stylohyoid, mylohyoid

42
Q

Muscles involved in the depression of the hyoid

A

Sternohyoid, Sternothyroid, omohyoid and thyrohyoid

43
Q

What is the word for gums

A

Gingivae

44
Q

Is the palatoglossal or palatopharyngeal arch more anterior

A

Palatoglossal

45
Q

What are the inferior and superior labial frenulum

A

Little line thing under the lip in middle of the mouth

46
Q

What is the internal surface of the lips

A

Mucous membrane

47
Q

What is the line down the middle of the tongue called

A

Medial Suclus of the tongue

48
Q

What is the terminal suclus

A

Separation between anterior and posterior section of the tongue, at the posterior section

49
Q

What is the terminal suclus

A

Separation between the anterior and posterior sections of the tongue, at the posterior section

50
Q

What is the layman term for papillae

A

tastebuds

51
Q

Function of longitudinalis inferior

A

Pulls tongue down

52
Q

What do all extrinisic muscles of the tongue end in

A

Glossus

53
Q

Function of the genioglossus

A

Depresses the tongue and thrusts it out

54
Q

Function of the styloglossus

A

Raises and withdraws the tongue

55
Q

Function of the palatoglossus

A

Raises tongue back

56
Q

Function of the hyoglossus

A

Lowers the tongue’s sides

SPTH1103 (9 decks)

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