PRIN401 WEEK 1
Pregnancy
Pregnancy
Set of flashcards Details
| Flashcards | 20 |
|---|---|
| Language | English |
| Category | Medical |
| Level | University |
| Created / Updated | 07.10.2014 / 09.10.2014 |
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define radial deviation and ulnar deviation.
starting with the anatomical position, radial deviation would be to wave your hand away from the body
ulnar deviation would be to wave your hand toward the body.
the muscles of the GI tract arise from the ______ _________ (be specific)
splanchnic mesoderm
what is a blastocyst? What kinds of cells exist in the blastocyst, and what do these cells become later?
Blastocyst is when a morula further develops and forms a fluid filled cavity. It contains trophoblast cells in the surface, which forms the placenta, and it contains the inner cell mass, which forms the embryo
The coelum divides into three body cavities: the ____, _____, and _______
pericardial, pleural, and peritoneal
which of the following are connective tissue cells?
in which trimester is screening for trisomy 18 and 21 done? What test is routinely performed?
in the first trimester, such screening is performed. The routine test is nuchal translucency (basically a test that meaures the amount of protein behind the fetus neck. An excess amount of protein indicates abnormality
invasive prenatal diagnosis like ______ and _____ ____ _________ are only offered to patients at higher risk, such as patients over the age of ___.
amniocentesis , chorionic villi sampling
over 40
What is the critical period during development for teratogenesis?
weeks 3-8
How to calculate the embryonic age from the LMP for a 28 days cycle? How about for a 21 day cycle? How about for a 35 day cycle?
a 28 day cycle is LMP -2 WEEKS
a 21 day cycle is LMP - 1 WEEK
a 35 day cycle is LMP -3 WEEKs
when can sex determination of the fetus be accurately done?
after 18 weeks GA
the heart is derived from which primary germ layers?
mesoderm
the ____ _______ disintegrates when the blastocyst forms, and this is also the time when ______ occurs
zona pellucida , implantation
the hypoblast cells give rise to ____ cells
germ cells (eg. egg, sperm)
what does the septum transversum give rise to?
diaphragm
what does PAS do ? what does diastase do?
PAS stains Sugar, and glycoProteins. Diastase Digests external sugars on glycoproteins
how do you prepare cells for microscopy?
mnemonic: FESS
Fixation
Embedding in paraffin
Section
Staining
in what timeframe is the second ultrasound routinely performed?
20 +/- 2 weeks GA.
if CVS and/or amniocentesis were indicated, which would be performed in the first trimester? Which one in second?
CVS in first trimester (it is a less accurate than amniocentesis)
amniocentesis in second trimester
what are the 4 ways you can date a pregnancy?
Ultrasound
Palpation
LMP
Blood and urine test
what is the purpose of the routine ultrasound in 2nd trimester?
Fluid
Anatomical details
Growth of fetus
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