Vatican City is home to some of the most famous art in the world. St. Peter's Basilica, whose successive architects include Bramante, Michelangelo, Giacomo della Porta, Maderno and Bernini, is a renowned work of Renaissance architecture.
This is when the baby's brain, spinal cord, heart and other organs begin to form. The embryo is now made of three layers. The top layer â the ectoderm â will give rise to your baby's outermost layer of skin, central and peripheral nervous systems, eyes, inner ears, and many connective tissues. Your baby's heart and a primitive circulatory system will form in the middle layer of cells â the mesoderm.
Which is that of the stages of Human Development. So, in terms of human development an embryo is not a fetus, like a fetus is not a baby, like a baby is not a toddler, like a toddler is not a young adult... etc. Basically if you find the definition of Embryo it is: a developing human from conception to 8 weeks.