Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Capacitation
|
pruning of the sperm glycocalyx; permits the sperm-oocyte interaction
|
|
|
Ectopic pregnancy
|
implantation occurs outside of the uterine cavity; can occur in the uterine tubes or in the pelvic cavity
|
|
|
Placenta previa
|
implantation occurs near the cervix; provides a high risk of bleeding
|
|
|
Placental abruption
|
placenta becomes detached
|
|
|
Placenta accreta
|
abnormal adherence of the chorionic villi to the myometrium
|
|
|
Placenta percreta
|
villi penetrate the full thickness of the myometrium
|
|
|
Hydatidiform moles
|
can give rise to choriocarcinomas or persistent trophoblastic disease
|
|
|
Complete hydatidiform mole
|
– a cystic swelling of the uterus that forms when an embryo dies and the chorionic villi fail to vascularize; fertilization of empty oocyte (contains only paternal chromosomes); produces very high levels of hCG; diploid
|
|
|
Partial hydatidiform mole
|
derives from a poorly developed embryo; produces moderately high levels of hCG; triploid, with two sets of paternal chromosomes
|
|
|
Dizygotic (fraternal) twins
|
arises from multiple ovulations (high levels of FSH)
|
|
|
Monozygotic (identical) twins
|
arise from splitting of a single zygote
|
|
|
Human chorionic gonadotrophin (hCG)
|
secreted by syncytiotrophoblast
|
|
|
Progesterone
|
secreted by corpus luteum for five months, then by placenta; contraceptive “pill” and RU-486 are anti-progesterones
|
|
|
Gastrulation
|
process where the epiblast gives rise to mesoderm, endoderm and ectoderm
|
|
|
Notochord
|
derived from both endoderm and mesoderm; forms the nucleus pulposus
|
|
|
Sirenomelia
|
caudal dysgenesis from inadequate mesoderm; lower limb defects
|
|
|
Sacrococcygeal teratoma
|
persistence of primitive streak, forms multi-tissue tumor
|
|
|
Alpha-fetoprotein
|
liver glycoprotein; leaks into amniotic fluid with neural tube or ventral wall defects
|
|
|
Spina bifida occulta
|
incomplete neural arch, patch of hair over defect
|
|
|
Hemolytic Disease of the Newborn (HDN) or Erythroblastosis fetalis
|
mother is Rh- and fetus is Rh+; mother produces antibody that results in hemolysis of fetal red cells. Giving mother Rh immunoglobulin prevents HDN.
|
