Title: Fetal development: MedlinePlus Medical Encyclopedia
Headings: Fetal development
Fetal development
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Content: The lungs start to form. Week 9
Nipples and hair follicles form. Arms grow and elbows develop. Baby's toes can be seen. All baby's essential organs have begun to grow. Week 10
Your baby's eyelids are more developed and begin to close. The outer ears begin to take shape. Baby's facial features become more distinct. The intestines rotate. At the end of the 10th week of pregnancy, your baby is no longer an embryo.