Five month old foetus. View of a five month (20 week) old male foetus. Part of the umbilical cord, which carries oxygen and nutrients from the placenta, can be seen between his legs at lower right. By this time the foetus appears completely human, with fully developed lips, eyelids, eyebrows, external ears, fingers and toes. There is not much subcutaneous fat on the limbs or face, and the weight of the foetus by the end of the 5th month is still less than 500 grams. Fine head hair has developed, and the head, still disproportion- ately large, grows more slowly than the body. Foetal movements can now usually be felt. This foetus has a crown-rump length of about 19 cm.