Hormones & Regulation
This hormone stimulates the growth and maturation of ovarian follicles.
What is FSH?
This ovarian phase begins on day 1 of the menstrual cycle.
What is the follicular phase?
The fertilized ovum is called this.
What is a zygote?
The embryonic period occurs during these weeks of development.
What are weeks 3–8?
Normal amniotic fluid volume at term is approximately this amount.
What is 800–1,200 mL?
A surge of this hormone would directly trigger ovulation.
What is LH?
Ovulation typically occurs around this day in a 28-day cycle.
What is day 14?
The blastocyst structure that becomes the fetus is called this.
What is the inner cell mass?
This fetal shunt allows blood to bypass the liver.
What is the ductus venosus?
An AFI less than this value indicates oligohydramnios.
What is 5 cm?
This hormone makes the endometrium receptive to implantation after ovulation.
What is progesterone?
This uterine phase is driven by estrogen and rebuilds the endometrium.
What is the proliferative phase?
Implantation is typically complete within this time frame after conception.
What is 6–10 days?
This shunt allows blood to flow from the right atrium to the left atrium.
What is the foramen ovale?
This condition may be caused by fetal renal agenesis.
What is oligohydramnios?
This hormone secreted by the trophoblast maintains the corpus luteum in early pregnancy.
What is hCG?
Progesterone dominates during this uterine phase.
What is the secretory phase?
This process removes the glycoprotein coat from sperm, enabling fertilization.
What is capacitation?
This shunt diverts blood from the pulmonary artery to the aorta.
What is the ductus arteriosus?
Diabetes in pregnancy increases the risk for this condition.
What is polyhydramnios?
This hormone rebuilds the uterine lining during the proliferative phase.
What is estrogen?
The corpus luteum forms during this ovarian phase.
What is the luteal phase?
This reaction prevents polyspermy after sperm entry.
What is the cortical reaction?
This immunoglobulin crosses the placenta to provide passive immunity.
The placenta is fully developed by this week of gestation.
What is IgG?
What is 12 weeks?
These two fetal membranes rupture together during labor.
Identical twins result from division of a single fertilized ovum, known as this type of twinning.
What are the amnion and chorion?
What is monozygotic twinning?