Unit 1.5 Flashcards
How long does prenatal development last?
38 weeks
What are the three period of prenatal development?
Germinal. Period
Embryonic. Period
Fetal period
What is the germinal Period?
First two weeks after conception

What is the embryonic Period?
2–8 weeks after conception
Rate of cell, differentiation, intensifies, support systems for the cells form, and organs appear
Three layers of cells; endoderm, mesoderm, ectoderm
What is the fetal period?
2 to 7 weeks
Dramatic growth in size and weight, reflexes develop to prepare for birth
What is Organogenesis? 
The process of organ formation that takes place in the first two months of prenatal development. 
What is fetal period?
2 to 7 months
How many neurons are at birth?
100 billion
Where are the four stages of prenatal brain development?
Neural tube
Neurogensis
Neural migration
Neural connectivity
What is fetal alcohol spectrum disorder?
Difficulty with learning or memory, higher than normal level of activity, difficulty with attention, speech and language, delays, low, IQ, and poor reasoning and judgment skills 
What is the effects of an opioid exposure?
Preterm, birth, low, birth rate, breathing difficulties, reading, problems, developmental, delays, speech, problems, maternal mortality
What is the effects of marijuana exposure?
Low birth rate, greater likelihood of being placed in neonatal ICU, the fission sees in learning, memory and information, processing, lore, intelligence, depression, symptoms, and marijuana use in adolescence
What is amniocentesis?
Sample of amniotic fluid is withdrawn by syringe
What is fetal magnetic Resonance imaging?
Magnet and radio images to generate detailed images of a child organs and structures
