Questions and Correct Answers, 100%
Correct, Updated Fall 2024/2025.
the ______ represents the ruptured dominate follicle, which is a thin walled cyst with _____ blood
demonstrated by CD
corpus lutuem
circumferential blood demonstrated by color doppler
corpus luteum cysts secrete
progesterone
After fertilization the zygote undergoes rapid cell division and three days later just before entering the
uterus the _____ is present
12-16 cell morula
Within the uterus the conceptus is termed
blastocyst
what is the outer layer of the blastocyst
trophoblast
the trophoblast forms part of the ____ and inner _____
placenta
inner cell layer
the trophoblast helps form the
embryo
amnion
umbilical cord
yolk sac
The earlies sign of pregnancy is a small gestational sac seen on TV at approx
4-5 weeks
at approx 4-5 weeks, the MSD is usually
2.5mm
the early sac should be
round
, this small round fluid collection is completely surrounded by a ____ rim of tissue about____ mm thick
representing____
hyperechoic rim
2-3mm
developing chorionic villi and adjacent decidual tissue
where is the gestational sac usually visualized
mid to upper uterus
5th week: the gestational sac is now visible and contains the _____ lying opposite the amniotic cavity
with the embryonic disk ____ them
secondary yolk sac
between them
the epiblast will go on and form the definitive _____ and ____
embryo and fetus
what is the extra embryonic coelom
the space between the amnion and chorion
by about 14 weeks the chorionic cavity is normally___ and the amnion-chorion membrane forms the
_____ sac within the amniotic ____
obliterated
amniotic sac
amniotic fluid
know this
by 5-6 weeks, ____ concentric echogenic lines surround a portion of the gestational sac and can be seen
on TA US. The ____ is typically the first structure visualized in an IUP
two concentric echogenic lines
the YS is the first structure visualized in an IUP
on TV ultrasound a gestational sac is identified at ____ weeks. In patients with accurate dates, cardiac
motion is seen typically after _____ weeks, while a yolk sac is first seen at _____ to ____ weeks.
5 weeks
5 5/7 weeks
5 1/7-5 5/7th weeks