Surface of the Human Tongue
A high energy beam scanner, called a scanning electron micrograph, was used to capture this image, which shows the surface of a human tongue. The protruding objects, called filiform papillae, can sense pressure. The flaky appearance of the papillae results from the fact that they are constantly shedding their skin to increase sensitivity. Source: Science Photo/Photo Researchers
Pictured: The moment a human egg emerged from its ovary
Rare and startling film has been captured of a human egg emerging from the ovary. Fertile women release one or more eggs every month, but until now, only fuzzy images had been recorded.
Weeks 13-16 The brain is fully developed and the fetus can suck, swallow, and make irregular breathing sounds. Fetus can feel pain (New England Journal of Medicine). Fetal skin is almost transparent. Muscles tissue is lengthening and bones are becoming harder. Liver and organs produce appropriate fluids. Eyebrows and eyelashes appear and the fetus makes active movements including kicks and even somersaults.