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26 Cards in this Set
- Front
- Back
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morula becomes
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blastocyst
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blastocyst becomes
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inner cell mass and trophoblast
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inner cell mass becomes
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hypoblast and epiblast
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trophoblast becomes
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syncytiotrophoblast and cytotrophoblast
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gibbs free energy
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delta G= delta H- T delta S
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what releases B HCG
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syncytiotrophoblast after 2 weeks
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maternal component of placenta
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decidua basalis
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peripheral nervous system neural crest development
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ANS, schwann cells, cranial nerves, dorsal root ganglia, sympathetic ganglia, sensory nerves, vagus nerve
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bone of inner ear
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neural crest cells
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eye neural crest origin
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anterior chamber- cornea, sclera, ciliary muscle, iris pigment cells,
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odontoblast come from where
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neural crest cells
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what do neural crests make in adrenals?
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chromaffin cells of the medulla that make catecholamines
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what do the neural crest cells make in the heart
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aorticopulmonary septum
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neural crest in digestive tract
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enteric nervous seystem , celiac ganglion and enterchromaffin cells--> seratonin
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neural crest in skin
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melanocytes
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mutation in Homeobox HOXD-13=
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synpolydactyly which fuses 3rd and 4th fingers
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what alters HOX gene expression
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retinoic acid ( Vitamin A)
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without sonic hedgehog
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no tails
holonproscecephaly |
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dorsal ventral axis of HOX
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WNT 7
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without FGF Hox gene?
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short limbs
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aganglionic pt with other neural crest cell deficinencies what do you see?
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albinism, dental abnormalities
PNS abnormalities abnormalities of ear bones thyroid abnormlaities, adrenal abnormalities and aorticopulmonary septum problems |
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organogenesis occurs during what weeks
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3-8
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notochord forms
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neural plate but it arises from neural tube and neural crest cells
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anterior pituitary, lens, olfactory epithelium, mammary glands, salivary glands, sweat glands
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surface ectoderm
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retina,
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neuroectoderm
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cornea
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neural crest cells
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