Flashcards in embryonic period weeks 38 Deck (11):
What happens during the 3dr to 8th week of development of the previous 2 layer embryo ? And how is the process called ?
Transforms into a 3 layer embryo, process called gastrulation
Which are the 3 layers of the embryo ?
What is the primitive streak and its function ?
Its an aperture in the epiblast that lets cells go from the epiblast and form the central mesoderm and notochord and replace hypoblast cells to create the endoderm
The ectoderm gives rise to ?
1) surface ectoderm
3) Neural crest cells
Durig which period of development does major system and organs start to develop ?
A sacrococcygeal teratoma is ?
A tumor from remnant of the primitive streak , with multiple tissues
The tumor derived from remnants of the notochord is called ?
A partial Hydatidiform mole develops
From the union of two spermatozoa with one ovum, creating a 69 xxy triploidy
A complete mole develops from the union of ?
one spermatozoa with an empty ovum
all the material from the father will reduplicate and produce a cell 46 XX but with only paternal chromosomes
What percentage of patients with an Hydatidiform mole can develop an malignant trophoblastic disease ?