Title: Fetal development: MedlinePlus Medical Encyclopedia
Headings: Fetal development
Fetal development
Information
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Content: Muscles and bones are fully developed. Week 38 to 40
Lanugo is gone except for on the upper arms and shoulders. Fingernails may extend beyond fingertips. Small breast buds are present on both sexes. Head hair is now coarse and thicker. In your 40th week of pregnancy, it has been 38 weeks since conception, and your baby could be born any day now. Click to Keep Reading
Alternative Names
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Zygote; Blastocyst; Embryo; Fetus
Images
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Fetus at 3.5 weeks
Fetus at 7.5 weeks
Fetus at 8.5 weeks
Fetus at 10 weeks
Fetus at 12 weeks
Fetus at 16 weeks
24-week fetus
Fetus at 26 to 30 weeks
Fetus at 30 to 32 weeks
References
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Feigelman S, Finkelstein LH.