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Sp16 Anatomy Exam 2 > Embryo 22 > Flashcards

Embryo 22 Flashcards

1
Q

Frontonasal
Maxillary
Mandibular
Location relative to _______

A

Rostral to stomodeum
Lateral to stomodeum
Caudal to stomodeum

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2
Q

Facial features develop during

A

second month

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3
Q

Eyes move in which way

A

medially

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4
Q

Ears move which way

A

superiorly

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5
Q

1st ossification center in skull

A

Ears

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6
Q

ectodermal thickening in frontonasal prominence

A

Nasal placodes

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7
Q

Future nostrils

A

Nasal pit

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8
Q

Nasal pits are part of which pharyngeal arch

A

1st

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9
Q

Oronasal membrane ruptures at

A

week 6

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10
Q

Oronasal membrane rupture gives

A

Primordia choanae

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11
Q

Definitive chonae established by

A

development of secondary palate

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12
Q

Olfactory epithelium is derived from

A

Neuroectoderm

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13
Q

Cleft between lateral nasal prominences and maxillary prominences

A

Nasolacrimal groove

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14
Q

Intermaxillary segment components

A

philtrum
Premaxillary part of paxilla
Primary palate

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15
Q

Lateral palatine processes

A

Two plates of mesenchyme form secondary palate

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16
Q

Hard palate made from

A

Primary palate

anterior secondary palate

17
Q

Cleft palate caused by

A

failure of medial nasal prominences to fuse with maxillary prominences

18
Q

Ear progression

A

Otic placode
Otic pit
Otic vesicles
membranous labyrinth

19
Q

Utricular region
Position
Contents

A

Dorsal: utricle, semicircular ducts

20
Q

Saccular region
Position
Contents

A

Ventral: saccule, cochlear ducts

21
Q

Diverticulum extends from otic vesicles to form the

A

endolymphatic duct and sac

22
Q

CNVIII migrates along coils of cochlear to form

A

spiral ganglion

23
Q

Cells in wall of coiled duct form

A

Spiral organ of Corti

24
Q

Vacules develop in cartilage surrounding cochlear duct

Unite to form

A

Perilymphatic space

25
Q

Perilymphatic space divisions

A

Scala vestibuli

Scala tympani

26
Q

Perilymphatic space filled with

A

perilymph

27
Q

Auricular hillockes
Type of cells
which arch

A

mesenchyal proliferations

1st pharyngeal groove (1st and 2nd arches)

28
Q

Progression of optic

A

Optic groove
Optic vesicles
optic cups
optic stalks

29
Q

Lens development

A

lens placode
lens pit
lens vesicle

30
Q

Artery inside the eye

A

hyaloid artery

31
Q

Cornea layers

A

Outer ectoderm

middle and inner mesenchyme (from neural crest)

32
Q

Cornea is induced by

A

lens

33
Q

Eyelids are from

A

mesenchyme (neural crest)

Sp16 Anatomy Exam 2 (13 decks)

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