LaFleur Medical Terminology

Ch.9 Obstetrics and Neonatology

126 cards   |   Total Attempts: 188
  

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Ovulation
Expulsion of a mature ovum from an ovary
Gamete
Mature germ cell, either sperm (male) or ovum (female)
Conception, or fertilization
Beginning of pregnancy, when the sperm enters the ovum. Fertilization normally occurs in the fallopian tube
Zygote
Cell formed by the union of the sperm and the ovum
Embryo
Unborn offspring in the stage of development from implantation of the zygote to the end of the second month of pregnancy. this period is characterized by rapid growth of the embryo
Fetus
Unborn offspring from the beginning of the third month of pregnancy until birth
Gestation, pregnancy
Development of a new individual from conception to birth
Gestation period
Duration of pregnancy
Implantation, nidation
Embedding of the zygote in the uterine lining. the process normally begins about 7 days after fertilization and continues for several days
Placenta, or afterbirth
A structure that grows on the wall of the uterus during pregnancy and allows for nourishment of the unborn child
Amniotic, or amnionic, sac (also known as bag of water)
Membranous bag that surrounds the fetus before delivery
Chorion
Outermost layer of the fetal membrane
Amnion
Innermost layer of the fetal membrane
Amniotic fluid
Fluid within the amniotic sac, which surrounds the fetus
Amni/o, amnion/o
Amnion, amniotic fluid