-
Period: to
prenatal development to age 2 years
9 weeks Fetal stage begins -
12 weeks
gender organ developed -
16 weeks
Finger and toes developed -
18 weeks
hearing begins
Baby start to hear sounds -
week 24
Brain is growing,
more sensitive to sound -
week 32
Bones fully developed
Baby responds to noise -
week 36
Mussel fully developed -
40 weeks
Full-term developed he is listing and responding to voice in the womb -
prenatal development to age 2 years
