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56 Cards in this Set
- Front
- Back
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what is PHI stand for? |
Patient health identifiers |
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what are some examples of PHI's? |
DOB SSN address photographs |
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How long is the average menstrual cycle? |
28 days |
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Conception typically takes place around what time? |
Ovulation |
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when does ovulation occur in the cycle? |
day 14 of the cycle |
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when a mature ooctye is released from the ovary this is called? |
Ovulation |
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What covers the ooctye after ovulation? |
the Zona Pellucida |
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What is the Zona Pellucida responsible for ? |
It's responsible for protecting the ooctye, it prevents more then one sperm to fertilze the oocyte. It also prevents the oocyte from premature implantation ( ectopic pregnancy)
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The oocyte is swept into the fallopian tubes by? |
Fimbriae |
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When the ooctye is in the fallopian tube what will it come into contact with? |
sperm |
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From the ovary where was the oocyte released from? |
the follicle the corpus luteum |
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The corpus luteum is responsible for what? |
producing progesterone to support the pregnancy. |
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How long does the corpus luteum function on its own alone? |
6 weeks |
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When does the placenta start to produce progesterone? |
6-10 weeks, which then the corpus luteum degenerates and it no longer needed. |
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What is it called when a sped and oocyte fuse together? |
fertilization |
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After fertilization what is the ooctye now known as? |
the zygote |
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On what day is the ooctye known as the zygote? |
on day 15 of the cycle or day 1 of fertilization. |
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the arms of the fallopian tubes are known as what? |
the ampulla |
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Once cells divide into 12 -16 cells the zygote becomes now known as a? |
morula |
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What day does the morula stage begin? |
day 3- 4 after fertilization |
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When the morula accept fluid into the cell it becomes known as the ? |
blastocytst |
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The morula becomes a blastocyst at what day? |
on days 5-6 days after fertilization. |
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At what time in the cycle does the blastocyst hatch from the zone pellucid? |
approx. 6-7 days after fertilization.
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Why does the blastocyst hatches from the Zona Pellucida? |
So the blastocyst can implant into the lining of the uterus. |
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what is the outer cell layer around the blastocyst known as? |
the trophoblast |
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What hormone does the trophoblast emit? |
HCG hormone |
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what does hcg stand for? |
Human chorionic gonadotropin |
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when can hcg be detected ? |
5 days before the missed period |
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What is the name of the finger like projections of the trophoblast? |
Chorionic villi |
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What day does finger like projections known as chorionic villi invade the lining of the uterus? |
day 6-7 after fertilization |
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What are the two layers that the trophoblast starts to differentiates into called? |
synciotrophoblast - outer layer that will become the placenta.
Cytotrophoblast - inner layer that will become the chorion and amnion that 2 membrane layers. |
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On what day does the tropohoblast differentiates into two layers? |
on day 7 after fertilization |
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When does the chroionic villi start to not cover the decidua? |
at 8-10 weeks of gestation |
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How many mL are between the chorion and amnion layers of the placenta? |
150 mL of amniotic fluid |
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The placenta brings what to the fetus and carries what away? |
It brings oxygen and carries CO2, urea, bilirubin products away. |
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All nutrients pass through what to reach the fetus? |
the placenta |
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What does the placenta store? |
Carbohydrates, proteins, calcium and iron |
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What are some harmful substances that can pass through the placenta? |
drugs, poisons, alcohol, carbon and some viruses and bacteria, protozoan infections. |
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what impacts amniotic fluid volume levels? |
Maternal hydration during the 2nd half of pregnancy. |
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where does some of the amniotic fluid come from ? |
the fetus urinates and swallows amniotic fluid and urinates it out. some of the fluid comes from fetal lung fluids. |
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What is the role of amniotic fluid ? |
Temperature and pressure regulation Protect / Cushion fetus Immune protection provides a weightless space for symmetric fetal growth to allow free movement for development of neuromuscular pathways Urination, swallowing, fetal lung maturation. |
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what is the umbilical cord made up of? |
rubbery, connective tissue and wharton's Jelly. |
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How is the umbilical cord formed? |
from the fusion of the connective stalk with the yolk sac stalk and allantois.
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when does the yolk sac stalk and allantois fuse? |
4-5 weeks gestation |
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How many vessels are in the umbilical cord? |
3 vessel cord surrounded by wharton's jelly 2 arteries and 1 vein. |
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What side does the umbilical cord normally spirals to what side? |
to the left |
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How long is the umbilical cord typically? |
30 inches |
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During embryonic / fetal develpment where are the fetal intestines formed? |
In the umbilical cord and they will move into the fetal abdomen |
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what is the pre- embryonic period |
from conception to 2 weeks after fertilization |
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Embryonic development is know as from what time to what? |
the time from 2 weeks after fertilization to 8 weeks gestation or 8 weeks from LMP |
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What happens during embryonic development? |
-Embryo develops from cephalic to caudal, Head to butt. -Period of organogenesis- this means major organ systems are developed -3 cell layers of the embryonic disk will develop to form tubes -cell lysis |
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What are the 3 cell layer of the embryonic disk? |
Endoderm Mesoderm Ectoderm
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What is the endoderms role? |
inner layer, digestive tube, liver, auditory tube, trachea, bladder |
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What is the Mesoderms role? |
1 |
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What is the Ectoderms role? |
1 |
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What is cell lysis? |
It is programmed cell death for cells in areas that they are no longer needed. Examples: fingers, anal cavity and oral cavity. |
