EDELMANN / SCIENCE PHOTO LIBRARY. EDELMANN / SCIENCE PHOTO LIBRARY.
The human foetus after 5 months development, showing the head (still proportionally large) with the outer ear (auricle) visible. The eyelids have formed & are still joined together; they will separate during the 6th month. The maturation of the nervous & muscular systems enables the foetus to perform simple reflex actions; it begins to suck in amniotic fluid, which is absorbed in the stomach & upper intestines (the kidneys function slowly, draining urine back into the amniotic fluid; waste is not discharged from the rectum & consequently the mother's body is active during this period in this task).
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