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3 week -8 week
human development weeks 3 through 8
8
Science
Undergraduate 4
01/25/2009

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Cards

Term
Hydrops Fetalis
Definition
most sever form of alpha-thalassemia and causes sever pallor, generalized edema, massive hepatosplenomegaly, invariably leads to intrauterine fetal death.
Term
B-Thalassemia
Definition
most severe form of B-thalassemia and causes a sever, transfusion-dependant anemia.
Term
Tail fold
Definition
results from growth of distal part of neural tube, the primordium of the spinal cord during folding, part of endodermal germ layer is incorporated into the embryo as hindgut.
Term
4th week
Definition
lense of the eye lens placods, 5 pharyngeal arches form. otic pits of internal ears
Term
5th week
Definition
formation of hyoid bone, upper limb bud, primitive kidney.
Term
6th week
Definition
separate future fingers(digital rays), formation of auricle
Term
7th week
Definition
digital rays gain nitches
Term
8th week
Definition
1st ossification in femur.
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