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Neuro Block 3-RG > Face and Palate Embryology > Flashcards

Face and Palate Embryology Flashcards

1
Q

Stromodeum

A

becomes mouth, junction of 5 prominences

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2
Q

Frontonasal, maxillary, mandibular prominences

A

become face

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3
Q

Placodes

A

thickened plate of ectoderm, sense organs develop around these

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4
Q

Nasal placodes become

A

nasal pits –> nostrils

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5
Q

Maxillary segment

A

fused medial nasal prominences

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6
Q

Nasolacrimal groove origin

A

develops from ectoderm

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7
Q

What does nasolacrimal groove become?

A

nasolacrimal duct

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8
Q

What happens is nasolacrimal groove does not open?

A

lots of tearing, possible eye infections

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9
Q

Oronasal membrane

A

separates oral and nasal cavity

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10
Q

What separates the oral and nasal cavities at 7 weeks?

A

primary palate

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11
Q

Where are olfactory receptor cells derived from?

A

placodes

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12
Q

When does the secondary palate form?

A

12 weeks

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13
Q

Muccalpharyngeal membrane

A

becomes separation to hard and soft palates

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14
Q

Choana atresia

A

problems breathing

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15
Q

Critical period of development for palate

A

6-9 weeks

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16
Q

Primary palate develops from

A

intermaxillary segment

17
Q

Secondary palate develops from

A

maxillary process

18
Q

Incisive foramen

A

location where primary and secondary palates fuse together

19
Q

Cleft lip

A

caused by failure of fusion of maxillary prominences with fused medial nasal prominences

20
Q

Cleft palate

A

caused by failure of fusion of the palatine shelves

21
Q

Oronasal membrane ruptures to become what structure?

A

primitive choanae

22
Q

What happens if the oronasal membrane does not rupture?

A

choanal atresia

23
Q

Medial nasal prominences form what?

A

nasal septum

24
Q

Olfactory epithelium arises from what?

A

ectoderm –> neuroectoderm

25
Q

The primary palate forms from which prominence?

A

frontonasal

26
Q

The secondary palate from from which prominence?

A

maxillary prominence (palatine shelves)

27
Q

From which pharyngeal arches are the external ears formed from?

A

1 and 2

28
Q

6-9 weeks

A

most critical time for palate development

29
Q

What type of ossification do the mandibular prominences undergo?

A

intramembranous

30
Q

Lateral nasolacrimal prominences become the…

A

nasolacrimal duct

Neuro Block 3-RG (23 decks)

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