Placentation and Embryogenesis Flashcards
Reaction that renders the secondary oocyte impermeable to other sperm
Cortical reaction
At 32 -cell stage, the blastomeres form a ___, which consists of an inner cell mass and outer cell mass
Morula
In blastocyst formation, the inner cell mass is now called the:
Embryoblast
Trophoblast layer that divides mitotically
Cytotrophoblast
Trophoblast layer that is the dominant producer of hCG
Syncytiotrophoblast
A process that establishes the three germ layers
Gastrulation
The formation of the heart and extremities are completed by how many weeks post conception?
8 weeks
Identify the FDA category:
Adequate and well-controlled human studies have failed to demonstrate a risk to the fetus in the first trimester of pregnancy (and there is no evidence of risk in later trimesters).
Category A
Identify the FDA category:
Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women
Category B
Identify the FDA category:
Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.
Category B
Identify the FDA category:
Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Category C
Identify the FDA category:
There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Category D
Identify the FDA category:
Studies in animals or humans have demonstrated fetal abnormalities and/or there is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience, and the risks involved in use of the drug in pregnant women clearly outweigh potential benefits.
Category X
Identify the FDA category: Folic acid
Category A
Identify the FDA category: Isotretinoin
Category X
Identify the FDA category: Thalidomide
Category X
