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PHU: Biweekly Test 2 > Development of the Face, Eye, and Ear > Flashcards

Development of the Face, Eye, and Ear Flashcards

1
Q

this type of congenital defect accounts for 1/3 of all of them

A

craniofacial

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2
Q

most clinically significant craniofacial teratogen

A

alcohol

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3
Q

frontal nasal prominence gives rise to what

A

forehead

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4
Q

maxillary prominence gives rise to what

A

maxilla and zygomatic bones

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5
Q

mandibular prominence gives rise to what

A

mandibule

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6
Q

primordial mouth

A

stomodeum

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7
Q

form from thickening of surface ectoderm

A

placodes

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8
Q

what canalizes to form the nasolacrimal duct

A

a solid cord

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9
Q

the prominences form from what merging

A

mesenchyme

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10
Q

what forms from the intermaxillary segment

A

primary palate

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11
Q

forms the premaxillary portion

A

primary palate

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12
Q

premaxillary segment contains what

A

4 front teeth

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13
Q

forms the primordium of hard and soft palate

A

secondary palate

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14
Q

posterior part of palate does not ossify and remains as

A

soft palate

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15
Q

not enough proliferation of neural crest cells of the lip so they don’t fuse together

A

cleft lip

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16
Q

most minor anomaly of clefting

A

cleft uvula

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17
Q

due to failure of maxillary and mandibular processes to fuse

A

lateral cleft face

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18
Q

due to failure of maxillary and lateral nasal process to face

A

medial cleft face

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19
Q

2 parts of the skull

A

neurocranium
viscerocranium

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20
Q

part of neurocranium that forms base of skull

A

cartilaginous

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21
Q

part of neurocranium that surrounds the brain

A

membranous

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22
Q

another name for part of neurocranium that forms base of skull

A

chondrocranium

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23
Q

unossified mesenchyme

A

fontanelles

24
Q

most prominent fontanelles (part of membranous neurocranium)

A

anterior and posterior

25
Q

which two arches form the viscerocranium

A

1st and 2nd

26
Q

optic grooves invaginate to form what

A

optic vessels

27
Q

optic vesicle distal end expands and forms what

A

optic stalk

28
Q

surface ectoderm of eye forms

A

lens placodes

29
Q

optic vesicles invaginate to form goblet-shaped what that surround the lens vesicle

A

optic cups

30
Q

enclosed within the primordial optic nerve

A

hyaloid vessels (a. and v.)

31
Q

these individuals are sensitive to white light and they are missing tissue in the eye; a defective closure of retinal fissure

A

coloboma of the iris

32
Q

light passes through the retina on to what receptors

A

rods and cones

33
Q

what develops from wall of optic cup

34
Q

plane of separation during a retinal detachment is between what layers

A

pigmented epithelium and layer of rods and cones

35
Q

develops from ectodermal placode

36
Q

these fibers last a lifetime

A

primary lens

37
Q

these two muscles of the iris derived from neuroectoderm

A

dilator and sphincter pupillae m.

38
Q

develops from rim of optic cup

39
Q

develops from buds of surface ectoderm

A

lacrimal glands

40
Q

eyelids and glands and eyelashes derived from

A

surface ectoderm

41
Q

microophthalmos

A

small eyes

42
Q

single median eye

43
Q

increase in CSF pressure slows venous return from retina and causes papillaedema of optic disc

A

edema of optic disc

44
Q

2 eye defects that come from rubella infections

A

glaucoma
cataracts

45
Q

first of the 3 parts of the ear to develop

46
Q

what forms otic placode

A

thickening of surface ectoderm

47
Q

what labyrinth forms first

A

membraneous labyrinth

48
Q

this is complex and allows us to hear

A

organ of corti

49
Q

tubotympanic recess develops from what pouch

A

1st pharyngeal pouch

50
Q

tensor tympani derived from what arch

51
Q

stapedius m. derived from what arch

52
Q

external acoustic meatus develops from what groove

53
Q

what 3 sources develop tympanic membrane

A

ectoderm
mesenchyme
endoderm

54
Q

congenital anomaly of ear where ossicles didn’t form properly

A

conductive congenital deafness

55
Q

absence of auricle

56
Q

small auricle

57
Q

where should ears usually be in relation to eye

A

same height and lateral

PHU: Biweekly Test 2 (12 decks)

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