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FF2 Exam 2 > Oral Cavity Structures > Flashcards

Oral Cavity Structures Flashcards

1
Q

What is the cleft of the upper lip called, separating the upper lips?

A

Philtrum

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2
Q

Describe the musculature of the lips

A

Striated and voluntary

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3
Q

The muscle surrounding the mouth is the:________________

A

Orbicularis oris

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4
Q

The oral cavity represents what part of the cranium?

A

Viscerocranium (ventral part of the face)

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5
Q

Why are age related changes necessary in the oral cavity?

A

To house secondary dentition

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6
Q

What is the bone support of the dorsal and ventral wall of the oral cavity?

A

Upper jaw + palate
Mandible

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7
Q

The _____________m supports the floor of the oral cavity/

A

Mylohyoideus

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8
Q

What does the buccinator m do?

A

Lateral support of the oral cavity (cheeks)

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9
Q

List the 2 parts of the oral cavity

A
  • Vestibulum (labial and buccal part)
  • Cajun oris proprium
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10
Q

What almost completely fills the oral cavity when the mouth is closed?

A

Tongue

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11
Q

What makes up the caudal border of the oral cavity?

A

Palatoglossal arch

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12
Q

What separates the primary oral cavity (subcephalic pocket) from the primitive pharynx of the foregut?

A

Oropharyngeal membrane

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13
Q

List the 4 parts of the tongue

A
  • Root
  • Body
    -Apex
  • Free Margin
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14
Q

What attaches the tongue to the floor?

A

Frenulum linguae

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15
Q

What attaches the tongue to the base of the skull?

A

Hyoid apparatus

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16
Q

What type of muscle tissue in the intrinsic muscle of the tongue?

A

Striated voluntary

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17
Q

What explains the rough surface of the cat’s tongue?

A

Keratinization and cornification of conical papillae

18
Q

Describe the function of the mechanical papillae

A

Aid in food transport while chewing and swallowing

19
Q

What are the 3 types of mechanical papillae based on shape or location?

A
  • Filiform
  • Conical
  • Marginal
20
Q

Which type of mechanical papillae of the tongue is only present in suckling puppies?

A

Marginal

21
Q

Describe location of the papillae of the tongue

A

Only present in dorsal side and edge

22
Q

What is the ventral part of the tongue lined with?

A

Tunica mucosa

23
Q

The tunica mucosa of the tongue has what type of papillae?

A

Gustatory papillae

24
Q

List the 3 types of gustatory papillae

A
  • Fungiform
  • Circumvallate
  • Foliate
25
Q

True/false: Sensory cells in the gustatory papillae are post mitotic

A

True

26
Q

What do gustatory papillae contain ?

A

Taste Buds

27
Q

What are the 4 CN innervating the tongue in development?

A

CN V3 (lingual branch) , VII, IX, XII

28
Q

What is the suspensory apparatus of the tongue?

A

Hyoid apparatus

29
Q

Wat is the derivative of the hyoid apparatus?

A

Branchial apparatus

30
Q

What are the precursors of the hyoid cartilages/bones?

A

Cartilages of the branchial arches

31
Q

How is the basihyoid bone oriented?

A

Transversely

32
Q

Is the basihyoid bone paired?

A

No

33
Q

Define the function of the hyoid apparatus

A
  • support the tongue and larynx
  • enables deglutition
34
Q

What limits the size of the food bolus?

A

Hyoid apparatus

35
Q

What can explain dry mouth under stress but a watery mouth when you look at food?

A

Autonomous innervation

36
Q

Are salivary glands exocrine or endocrine?

A

Exocrine

37
Q

What helps push saliva out from the glands?

A

Myepithelial cells

38
Q

What explains the topography, morphology, and innervation of the tongue?

A

Developmental processes

39
Q

Describe a palatine cleft

A

Failure of the formation or fusion of the palatine processes of L/R Maxilla

40
Q

What’s the local swelling that may be due to sediment in excretory salivary glands?

A

Ranula

FF2 Exam 2 (9 decks)

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