Chapter 19.1,2,3,4 Flashcards
(26 cards)
Fertilization
Only few hundred sperm that enter the vagina reach the egg, and only one can fertilize it.
The zygote
The united egg and sperm
Cell ovulation
The original cell divided to make 2 cells
The blastocyst
5 days after fertilization, embryo reaches uterus, made up of about 50-100 cells
(FUC)
Implantation
Blastocyst attached itself to wall of uterus
Beginning of life cycle
Fertilization, zygote, cell ovulation, blastocyst, implantation
(FZCBI)
Amniotic sac
Fluid filled bag of thin tissue that develops around the embryo
Placenta
Attachment holding embryo to wall of uterus
Umbilical cord
“Embryos lifeline”
Structures of the uterus
Amniotic sac, placenta, and umbilical cord
SPU
How much more calories should a woman eat in a day while pregnant?
About 300 more
6 important nutrients
Folic acid, protein, calcium, iron, vitamin a, and vitamin b complex
(FPCIAB)
Folic acid helps with
Formation of neutral tube; brain and spinal cord development
Protein helps with
Muscle formation and growth
Calcium helps with
Bones and tooth formation; nerve and muscle development
Iron
Oxygen delivery by blood cells
Vitamin A helps with
Cells and bone growth; eye development
Vitamin B helps with
Nervous system development
Complications during pregnancy
Ectopic pregnancy, miscarriage, preeclampsia
Ectopic pregnancy
When the blastocyst implants in the Fallopian tube or elsewhere in the abdomen
Miscarriage
The death of an embryo or fetus in the first 20 weeks of pregnancy
Preeclampsia
Prevents fetus from getting enough oxygen
Complications at birth
Surgical delivery, premature birth, low birthweight
SPL
Surgical delivery
C-section; doctor makes an incision in the lower abdomen into the uterus.
