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fetal    音标拼音: [f'itəl]
a. 胎儿的,胎的

胎儿的,胎的

fetal
adj 1: of or relating to a fetus; "fetal development" [synonym:
{fetal}, {foetal}]

Fetal \Fe"tal\, a. [From {Fetus}.]
Pertaining to, or connected with, a fetus; as, fetal
circulation; fetal membranes.
[1913 Webster]


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  • Fetal development by week: Your baby in the womb - BabyCenter
    Follow your baby's development week by week, from conception to labor, in these amazingly detailed, doctor-reviewed images At the start of this week, you ovulate Your egg is fertilized 12 to 24 hours later if a sperm penetrates it
  • Fetal Development: Week-by-Week Stages of Pregnancy - Cleveland Clinic
    The fetal stage of development begins around the ninth week and lasts until birth This is when the embryo officially turns into a fetus The fetus gets its assigned sex around nine weeks of pregnancy, although your healthcare provider can’t detect it on ultrasound yet
  • Fetus - Wikipedia
    In human prenatal development, fetal development begins from the ninth week after fertilization (which is the eleventh week of gestational age) and continues until the birth of a newborn
  • Fetal Development - Perinatology. com
    Fetal Age 20 weeks : The average fetus at 22 weeks is 11 4 inches (29 cm) long and weighs 1 1 pound (478 grams) Survival and morbidity; Gestational Age 23 weeks (5 3 months) Fetal Age 21 weeks : The fetus is having rapid eye movements during sleep
  • Fetal development: The first trimester - Mayo Clinic
    Fetal development: The first trimester Fetal development starts soon after conception Find out how your baby grows and develops during the first trimester By Mayo Clinic Staff
  • Fetal Development: The Complete Week-by-Week Guide (2025)
    Fetal development is a continuous, dynamic process that begins at conception and ends at birth Pregnancy is a fascinating journey filled with rapid changes, such as tiny cells multiplying, organs taking shape, and the senses awakening, all working together to create a healthy baby
  • The Stages of Fetal Development - Human Life International
    Stages of Fetal Development When a woman ovulates, an ovary releases an egg (or several), which travels into the Fallopian tube to be fertilized After an egg is fertilized, usually within the Fallopian tubes, the germinal stage begins This stage is the shortest of the fetal development stages
  • Fetus - Definition, Stages and Development | Biology Dictionary
    Fetal development occurs between the embryonic stage of development and birth in humans This stage begins after 11 weeks of gestation, when the embryo begins to exhibit human characteristics, and lasts until birth
  • Fetal development: MedlinePlus Medical Encyclopedia
    Learn how your baby is conceived and how your baby develops inside the mother's womb WEEK BY WEEK CHANGES Gestation is the period of time between conception and birth when a baby grows and develops inside the mother's womb
  • Stages of Fetal Development - American SPCC
    Want to learn more about the stages of fetal development? Visit the American SPCC learning center to view fetal development by week, plus explore our fetal development timeline





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