fetal development

fetal development

The growth and maturation of the fetus in utero. This is divided into three periods: the preembryonic period begins with conception and ends on gestational day 14; the embryonic period encompasses gestational weeks 3 through 8; and the remainder of the pregnancy is known as the fetal period. Body organs and systems arise from three primary germ layers (ectoderm, mesoderm, and endoderm) and rudimentary formation of all organ systems is completed by gestational week 16. Systems maturation essential to extrauterine survival begins during week 24 with the formation of pulmonary surfactant. Two critical events occur between weeks 26 and 29: the pulmonary vasculature becomes capable of gas exchange and the central nervous system becomes capable of controlling respiration.
Synonym: fetal maturation See: birth, preterm
References in periodicals archive ?
USA], Jan 07 (ANI): A study has recently revealed that the proteins that mount a potent immune response to Zika viral infection can affect the placenta and fetal development.
Alcohol exposure during embryonic and fetal development can result in FASD and is a leading cause of birth defects, said NIAAA Director George F.
Self-renewal is the process by which stem cells divide to make more stem cells, which is important for the growth of tissues during fetal development and the regeneration of tissues throughout adult life.
We've done so through pro-life education that does everything it can to get women the facts about fetal development before Planned Parenthood and other abortion advocates can.
Objective: To evaluate the effects of Ramadan fasting on fetal development and outcomes of pregnancy.
She had been hospitalized for nausea and dehydration several times during her pregnancy, but it appeared that fetal development was normal.
A tooth whitening paste imported from the Netherlands has been removed from the market as it contains Sodium Perborate, which meets EU criteria as toxic and can affect fertility and fetal development, the health services said.
This remains the only book for parents that cover the basics of how to identify a possible B12 deficiency from fetal development through adolescence, and discusses intervention techniques and treatments while emphasizing techniques for working with doctors.
Completion of implantation, gastrulation, and neurulation are discussed before an interlude on, first, the mechanisms of normal and misdirected morphogenesis, and second, a general overview of fetal development and fetal healthcare needs.
breast-feeding, complementary foods, vaccinations), and pictures and animated videos to show fetal development and movements.
Embryology and fetal development are fascinating topics.
Mothers-to-be are currently warned to limit their fish intake due to the negative effects of mercury on fetal development.