How does a baby develop in the womb?
Conversely let’s look at the actual development of the child. Click here to see a slideshow of photographs of a baby’s development in the womb. 1 day- Smaller than a grain of salt, the new life has inherited 23 chromosomes from each parent. This one cell contains the complex genetic blueprint for every detail of human development- the child’s sex, hair and eye colour, height and skin tone. 7-14 days- Cells multiply and become specialized for muscular, neural, reproductive, skeletal, digestive, and circulatory functions. 20 days- Eyes start to form 22 days- Heart begins to beat 23 days- Central nervous system begins to develop 4 weeks- Skeleton forms and muscles develop, arms and legs begin to form 5 weeks- Nose and mouth form 6 weeks- Brain waves can be recorded 8 weeks- All organs are present, complete, and functioning (except lungs- they follow a little later) 8-10 weeks- Body is completely formed. Responds to touch, fingers and toes defined, has permanent fingerprints, baby can suck