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4 Craniofacial biology > VM craniofacial development > Flashcards

VM craniofacial development Flashcards

1
Q

what process is this?

A

mandibular process

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2
Q

what process is this?

A

maxillary process

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3
Q
A

developing tooth -> dental lamina and tooth germ

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4
Q
A

meckel’s cartilage

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5
Q
A

tongue

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6
Q
A

palatal shelves

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7
Q
A

maxillary nerve trunk

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8
Q

what is this and its function?

A

nasal capsule

primitive support

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9
Q
A

dental lamina

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10
Q

what is this structure?

A

nerve trunk

no nuclei in axons as they are in cell bodies that are miles away in the trigeminal ganglion, nuclei we do see are supporting cells

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11
Q

what structures are derived from meckel’s cartilage?

A

Malleus, mandible, sphenomandibular ligament and sphenomalleolar ligament

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12
Q

what structures are derived from the nasal capsule?

A

Midline nasal septum and ethmoid bones

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13
Q

predict what age the embryo is, why?

A

Week 7 as palatal shelves down lateral tongue and tongue takes up most of the space
Week 6 is when see the first evidence of tooth development

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14
Q

compare the histology of the different structures

A
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15
Q
A

palatal shelves

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16
Q
A

tongue

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17
Q
A

meckel’s cartilage

18
Q
A

early tooth development

19
Q
A

maxillary nerve trunk

20
Q
A

nasal capsule

21
Q

what is the line pointing at?

A

bone formation

22
Q

what age is this specimen? why?

A

Week 8, palatal shelves elevated but not fused yet

23
Q

which forms first maxilla or mandible?

A

mandible

24
Q

mandibular process

A

meckel’s cartilage

25
Q

mandibular process

A

developing mandible

26
Q

what is this structure at the base of the nasal capsule?

A

developing vomer
dark cells are osteoblasts making bone

27
Q

note this

A
28
Q

what is this?

A

Nasal capsule is made up of cartilage -> nasal septum is part of it

29
Q

what is this in the maxillary process?

A

maxillary nerve trunk

30
Q
A

tooth germ

31
Q
A

maxillary nerve trunk

32
Q
A

palatal shelves

33
Q
A

tooth germ

34
Q
A

meckel’s cartilage

35
Q
A

developing mandible

36
Q
A

inferior alveolar nerve

37
Q
A

this will be the sulcus

38
Q

look at this inferior alveolar nerve next to the developing mandible

A
39
Q

what are these?

A

Remnants of nasal capsule

40
Q
A

Condensed ectomesenchymal cells that will make dentine and pulp

41
Q
A

Epithelial cells that will form ameloblasts and make enamel

4 Craniofacial biology (20 decks)

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