Prenatal Development

egg attaches to the lining of uterus, critical stage for brain and spinal cord development, internal organs and circulatory systems begins to form, heart begins to beat

• month 2
• month 3
• month 1
• month 8

hair, eyelashes, and eyebrows appear, organs maturing, become more active

• month 3
• month 5
• moth 8 
• month 9

rapid weight gain continues, may react to lout noises with a reflex jerking motion, moves to a head down position

• month 6
• month 2
• month 9
• month 8

face, eyes, ears, and limbs take shape, bones begin to form

• month 2 
• month 4
• month 6
• month 3

has periods of activity followed by periods of rest and quiet

• month 3
• month 4
• month 7
• month 8

can such its thumb, swallow, hiccup, move, facial features become clearer

• month 3
• month 4
• month 8
• month 7

fat deposits under the skin, fetus appears wrinkled, breathing movements begin

• month 1
• month 4
• month 6
• month 9

weight gain continues, skin becomes smooth as fat deposits continue, movements decrease as the fetus has less room to move around, acquires disease-fighting antibodies from the mother’s blood, descends into pelvis, ready for birth

• month 9
• month 8
• month 4
• month 7

nostrils, mouth, lips, and eyelids form, buds for all 20 baby teeth appear, fingers and toes almost complete, all organs present but immature

• month 2
• month 1
• month 3
•  month 4

What is the baby called during the germinal stage?

• fetus
• embryo
• zygote