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prenatal development

list of vocabulary for chapter 3 Leifer PHCC

QuestionAnswer
autosomes body chromosomes
mitosis each daughter cell contains the same number of chromosomes as the parent cell
diploid 46 chromosomes
spermatogenesis process of mitosis in the sperm
oogenesis process of mitosis in the ovum
haploid 23 chromosomes
zygote the cell formed by the union of the sperm and the ovum
blastocyst a stage in the embryonic development that follows the morula
endometrium the mucous membrane that lines the inner surface of the uterus
amnion the inner of the two fetal membranes:thin and transparent, holds the fetus suspended in amniotic fluid
Wharton's jelly yellow-white gelatinous material that surrounds and protects the vessels of the umbilical cord
trophoblast comprises the nutrient relationship with the endometrium of the uterus
teratogen a nongenetic factor that can produce malformations of the fetus
morula a solid mass of cells that developed from the fertilized ovum
monozygotic twins two fetuses that develop from a single divided fertilized ovum: identical twins
mesoderm the intermediate layer of germ cells in the embryo that gives rise to connective tissue, bone marrow,muscles, blood, lymphoid tissue, and epithelial tissue
endoderm the inner layer of cells in a developing embryo that give rise to internal organs such as the intestines
ectoderm the outer layer of cells in the developing embryo that gives rise to the skin, nails, and hair
decidua basalis the part of the decidua that unites with the chorion to form the placenta. It is shed in lochial discharge after delivery
chorion the fetal membrane closest ot the interior uterine wall: it gives rise to the placenta and continues as the outer membrane surrounding the amnion
chorionic villi threadlike projections on the chorionic surface of the placenta; they help to form the placenta and secrete human chorionic gonadotropin
dizygotic twins fetuses that develop from two fertilized ova: fraternal twins
What are the three fetal circulatory shunts ductus venosus, foramen ovale, ductus arteriosus
AVA artery, vein, artery
hCG human chorionic gonadotropin
Created by: kathieerickson
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