This pulsation becomes baby's constant companion during the entire fetal period. (soundoasis.com)
Their analysis revealed the existence of change points as well as periods of persistent gene community structure, including a dynamic community of genes involved in neural projection guidance that was highly active during the mid to late fetal period. (sciencedaily.com)
As the embryonic period comes to an end and the fetal period begins, your baby is looking much more human and less like an over-grown tadpole. (pregnancy-baby.com)