NVCC PSY 230 Exam 1

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NVCC PSY 230 Exam 1 When is the germinal period? - ✔✔first 2 weeks after conception What is fertilized ovum called? - ✔✔Zygote When does zygote make first cell division? - ✔✔Within 36 h... rs of fertilization. Then will divide every 12 to 15 hrs after as it moves down fallopian tube. What is a blastocyte? - ✔✔the cell that is preparing for implantation during the germinal stage. When does the placenta form and what is it? - ✔✔During germinal stage. It is a projection from the uterus. When is the embryonic stage? - ✔✔Week 3 to 8. Fastest paced development When are all the major organs and neural tube formed? - ✔✔embryonic stage When is the fetal stage? - ✔✔From the 9th week until birth What is the age of viability? - ✔✔22-23 weeks When is the first trimester, and what hormones are produced? - ✔✔First three months. Formation of the fetus' main organs. The body produces progesterone and the placenta produces HCG Important changes during second trimester? - ✔✔Month 4-6. ~week 18 is the quickening. What is down syndrome? - ✔✔disorder caused by cell-division error called nondisjunction. An extra piece of chromosome attaches to pair 21. Child is born with 47 chromosomes instead of 46. Single gene disorder - ✔✔Genetic disorder that can be passed down as dominant (50/50), recessive (with two carriers, 25%, with one carrier, disease free) or sex-linked (boys 50/50 with mother carrier). Birth stages - ✔✔1) Dialation and effacement 2) Birth 3) Expulsion of placenta What is an apgar score - ✔✔Measure of child's heart rate, muscle tone, respiration, reflex response and color rated on 0 to 2 at 1 minute and 5 minutes old. Apgar over 7 at 5 min is good [Show More]

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