Soon after conception, the embryo differentiates into
three layers of cells.
The mesoderm will develop into your baby’s bones – as well as
her heart muscles, kidneys and sex organs.
The endoderm becomes your baby's digestive system, liver and
lungs.
And the ectoderm develops into the nervous system, hair,
skin and eyes.
In this cube you can track the corresponding development progress of week 4.
In addition to the large main view, this cube also allows you to admire the fetus in its original true to scale size.
Other shapes and sizes on request.