Chapter 46 - Ethics on Obstetrics Sonography
self-governing or self-directing freedom and especially moral independence;
the right of persons to choose to have their choices respected
bringing about good by maximizing benefits and min
Normal First Trimester Notes (B)
Implantation to the endometrial wall by the blastocyst occurs between which
days after conception?
end of 1st week
The blastocyst is fully implanted by when?
What invades the endometrium after implantation?
Abnormal First Trimester Notes
46 menstrual days (6 weeks)
When should FHT be seen by transvag imaging?
Does seeing FHT always predict a good pregnancy outcome?
Embryonic bradycardia is a fetal heart rate below _ bpm and is usually
Embryology of the Placenta part 3
what are the function of the placenta
exchange of gases by simple diffusion
exchange of nutrients,electrolytes, metabolic wast
transmission of maternal antibodies IgG
hormone productin: hcG, somatomammotropin, progesteron
Embryology of the Placenta part 1
what are the two layers in the blastocyst stage
1:trophoblast=outer cell mass
2:embryoblast=inner cell mass
what are two layers of the trophoblast
1:cytotrophoblast=mitotic mononucleated cells
Fetal Face and Neck Notes
absence of the nose
group of disorders having in common the coexistence of an omphalocele,
macroglossia, and visceromegaly
branchial cleft cyst
a cystic defect that ari
Embryology of the Placenta part 2
What forms the secondary villi?
Core of Mesoderm develops at day 16
The extraembryonic mesoderm as it fills in the core of the villis. That
happens early in the third week
What are the tertiary villi?
develop blood vessel
Chapter 45 Notes part 1
aspiration of a sample of amniotic fluid through the mother's abdomen for
diagnostic analysis of fetal genetics, maturity, and/or disease
smooth membrane enclosing the fetus and amniotic fluid; it is loosely fu
Chapter 45 Notes part 2
List the guidelines for defining the first trimester embryo.
Indications for first trimester sonography follow:
Confirm presence of intrauterine pregnancy.
Evaluate for suspected ectopic pregnancy.
Define cause of vaginal bleeding.
Normal First Trimester Notes (A)
multiple pregnancy with two amniotic sacs
multiple pregnancy with two chorionic sacs
age calculated from when conception occurs
length of time calculated fro the first d