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First Aid: Embryologic Derivatives Flashcards

Name the embryologic layer from which each tissue or cell type is derived. (65 cards)

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0
Q

lens

A

surface ectoderm

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1
Q

adenohypophysis

A

surface ectoderm

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2
Q

epithelial linings of oral cavity, sensory organs of ear, and olfactory epithelium

A

surface ectoderm

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3
Q

epidermis

A

surface ectoderm

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4
Q

anal canal below pectinate line

A

surface ectoderm

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5
Q

salivary, sweat, and mammary glands

A

surface ectoderm

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6
Q

brain (neurohypophysis, CNS neurons, oligodendrocytes, astrocytes, ependymal cells, pineal gland)

A

neuroectoderm (duh)

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7
Q

retina

A

neuroectoderm

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8
Q

spinal cord

A

neuroectoderm

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9
Q

autonomic nervous system

A

neural crest

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10
Q

dorsal root ganglia

A

neural crest

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11
Q

celiac ganglion

A

neural crest

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12
Q

melanocytes

A

neural crest

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13
Q

chromaffin cells of adrenal medulla (the postganglionic sympathetic neurons that release NE and epinephrine)

A

neural crest

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14
Q

parafollicular (C) cells of thyroid

A

neural crest

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15
Q

Schwann cells

A

neural crest

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16
Q

pia and arachnoid

A

neural crest

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17
Q

bones of skull

A

neural crest

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18
Q

odontoblasts

A

neural crest

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19
Q

aorticopulmonary septum

A

neural crest

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20
Q

gut tube epithelium

A

endoderm

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21
Q

anal canal above pectinate line

A

endoderm (derivative of gut tube)

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22
Q

lungs

A

endoderm (derivative of gut tube)

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23
Q

liver

A

endoderm (derivative of gut tube)

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24
pancreas
endoderm (derivative of gut tube)
25
thymus
endoderm (derivative of gut tube)
26
parathyroid
endoderm (derivative of gut tube)
27
thyroid follicular cells (not C cells)
endoderm (derivative to gut tube)
28
muscle
mesoderm
29
bone
mesoderm
30
serous linings of body cavities (i.e., pleura, peritoneum)
mesoderm
31
spleen
mesoderm (derived from foregut mesentery)
32
cardiovascular structures
mesoderm
33
lymphatics
mesoderm
34
blood
mesoderm
35
kidneys
mesoderm
36
ovaries
mesoderm
37
urethra
endoderm
38
eustachian tube
endoderm
39
adrenal cortex
mesoderm
40
dermis
mesoderm
41
testes
mesoderm
42
nucleus pulposus
notochord
43
upper 1/3 of vagina
mesoderm
44
lower 2/3 of vagina
endoderm
45
bladder
all except trigone--endoderm | trigone--mesoderm (derived from mesonephric ducts)
46
surface ectoderm
``` adenohypophysis lens of eye epithelial linings of oral cavity, sensory organs of ear, olfactory epithelium epidermis anal canal below pectinate line glands: parotid, sweat, mammary glands ```
47
FINISH SET
...
48
truncus arteriosus
ascending aorta and pulmonary trunk
49
bulbis cordis
smooth parts (outflow tract) of left and right ventricles
50
primitive ventricle
trabeculated left and right ventricles
51
primitive atria
trabeculated left and right atria
52
left horn of sinus venosus
coronary sinus
53
right horn of sinus venosus
smooth part of right atrium
54
right common cardinal vein and right anterior cardinal vein
superior vena cava
55
transposition of great vessels
failure of truncus arteriosus to spiral
56
tetralogy of fallot
skewed AP septum development
57
partial AP septum
persistent truncus arteriosus
58
ligamentum teres hepatis
post-natal derivative of umbilical vein (contained in falciform ligament)
59
medial umbilical ligaments
post-natal derivative of umbilical arteries
60
ligamentum arteriosum
post-natal derivative of ductus arteriosus
61
ligamentum venosum
post-natal derivative of ductus venosus
62
fossa ovalis
post-natal derivative of foramen ovale
63
urachus median umbilical ligament
post-natal derivative of allantois
64
nucleus pulposus of intervertebral disc
post-natal derivative of notochord

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