hdf 213 fetal development
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Fetal Development
Information compiled from Wittmer & Petersen, the Mayo Clinic, BabyCenter.com, AAP, and additional sources.
Wittmer, D.S. & Petersen, S. H., Infant and Toddler Development and Responsive Program Planning: A Relationship-Based ApproachPrentice Hall
Slide 4.2
The Fetus The first trimester
Ovum and sperm combine Rapid cell multiplication Implantation/Placenta FormsExternal Features/Internal OrgansSleep/wake, grasp, suck, swallow
(Pages 75-76)
12 WeeksAt the size of a lime, your baby is showing reflexes…opening & closing hands, sucking, & squirming. Brain synapses are firing rapidly and his or her face is recognizably human.
Wittmer, D.S. & Petersen, S. H., Infant and Toddler Development and Responsive Program Planning: A Relationship-Based ApproachPrentice Hall
Slide 4.4
The FetusThe second trimester
Rapid growth & development
Mother feels movement (active about half the time)
Hear heartbeat, crying
24 WeeksAt the length of an ear of corn, the circulatory & digestive systems are developed & baby’s still experiencing rapid brain growth. You feel movement & doctors hear crying through the stethoscope.
Wittmer, D.S. & Petersen, S. H., Infant and Toddler Development and Responsive Program Planning: A Relationship-Based ApproachPrentice Hall
Slide 4.6
The FetusThe third trimester
Rapid brain development
Listening to language
Internal organs mature
Sucks fingers to comfort self
Could survive w/ complications
40 WeeksYour baby has added fat for insulation and is now 7 ½ pounds, the size of a small pumpkin. S/he is taking in the sounds of your language and is now head down for easy delivery. The skull bones have not yet fused to allow passage through the birth canal.
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