NUR 148 Chp 12 Conception and Fetal

NUR 148 Chp 12 Conception and Fetal Development

• takes sperm to get to the ovum

Answer btwn 5 mins and 6 hrs

• once fertilization occurs, no other sperm can...

Answer enter the egg (usually)

• Fertilized egg

Answer zygote

• Solid ball of cells

Answer morula

• at day 4, the fertilized egg is...

Answer separating into a fluid-filled cavity and a cellular mass. fertilized egg is now called a blastocyst

• implantation of blastocyst into endometrium occurs...

Answer 7-10 days after conception

• implantation bleeding due to erosion of...

Answer endometrial blood vessels 1 / 2

• trophoblastic cells of blastocyst secrete enzymes which allows...

Answer blastocyst to burrow into the endometrium

• decidua

Answer what the endometrium is called after implantation

• chorionic villi

Answer develop from the trophoblast, grow into blood-filled spaces of decidua

• chorionic villi become the...

Answer placenta

• fxn of chorionic villi

Answer they are vascular, they obtain nutrients and oxygen from the maternal blood stream, they also dispose of embryonic/fetal waste and CO2

• there is a one-cell thick membrane separating...

Answer maternal and fetal blood and allows passage of molecules btwn the 2

• conception occurs...

Answer

• weeks after the LMP

• the post-conception age (fetal age) is...

Answer

• weeks less than gestation age (bc ovulation starts mid-cycle at 14 days which is 2 wks)
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