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Human foetus. At this stage of development the face has become more human: lips, eyelids, and external ears have formed. Fingers are visible on the hands, toes on the feet, although there is little subcutaneous fat on the limbs or face. The volume of amniotic fluid will be approximately 50 millimetres. At this age, the crown-rump length (sitting height) of the foetus is about 7 centimetres and its weight is around 35 grams. Foetal movements begin at this time, but are usually not felt by the mother. The sex of the foetus can be determined.
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