Eyelids, eyebrows, nails and hair develop. Arms and legs move. Can suck thumb. By the end of the fourth month, the fetus is 13 cm long and weighs 141 (5 oz) grams.
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Eyelids, eyebrows, nails and hair develop. Arms and legs move. Can suck thumb. By the end of the fourth month, the fetus is 13 cm long and weighs 141 (5 oz) grams.