ANATOMICAL TRAVELOGUE / SCIENCE PHOTO LIBRARY ANATOMICAL TRAVELOGUE / SCIENCE PHOTO LIBRARY
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Computer-generated image reconstructed from scanned human data. Actual size of foetus is 3.5 - 6 inches, 4oz. This image presents a right-sided frontal view of a 16-week-old foetus. The age is calculated from the day of fertilization. At this point of development, the body begins to elongate as the head becomes relatively smaller. To hold the head erect, neck and back muscles develop as the bones of the spine, rib cage, and shoulders knit together and harden. The arm and leg limbs have elongated and the toes and fingers have become more defined. Distinctive whorls and ridges have begun to form on the fingertips and toes.
Model release not required. Property release not required.