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DEV PSYCH CHAP 3
PRENATAL DEVELOPMENT
Question | Answer |
---|---|
Period involves growth and development of these organ systems | fetal period |
Fetus is now viable – it has chance of surviving outside the womb, although under intensive care as it will need help breathing | 6 months |
Fatty tissues develop, functioning of organ systems steps up (heart and kidneys) | Last two months |
handle information processing at the cellular level in the brain | Neurons |
Neural tube | formation of the nervous system |
Neurogenesis | generation of new neurons |
Neural migration | cells moving outward from their point of origin to their appropriate locations |
Neural connectivity | connections between neurons begins to occur (continues postnatally) |
Teratology | field of study that investigates the causes of birth defects |
Teratogens | agent that causes a birth defect |
Dose, Genetic susceptibility, Time of exposure | Teratogen Exposure |
probability of structural defect is greatest when exposed to teratogens | Embryonic Period |
problems in how organs functions and may result in stunted growth rather than structural damage when infant is exposed to teratogens in this prenatal stage | Fetal Period |
In prohibited list of teratogens that should never be taken during first trimester | Accutane |
exposure of mothers to this results in lower birth weight and babies being born small for gestational age | Caffeine |
cluster of abnormalities and problems that appear in the offspring of mothers who drink alcohol heavily during pregnancy | Fetal Alcohol Spectrum Disorder |
Preterm births and low birth weights, fetal and neonatal deaths, respiratory problems (asthma), sudden infant death syndrome (SIDS or crib death) + Risk factor for ADHD | Nicotine |
is linked to impaired connectivity of thalamus and prefrontal cortex in newborns. exposure to this leads to an increased risk of baby being born stillborn | Environmental tobacco smoke |
Reduced birth weight, length, and head circumference; Impaired motor development at 2 years of age and slower rate of growth through 10 years of age, and executive functions deficits | Cocaine |
- Lower intelligence in children - Alters brain functioning in the fetus - Low birth weight and greater likelihood of being placed in a neonatal intensive care unit - Stillbirth | Marijuana |
Withdrawal symptoms – tremors, irritability, abnormal crying, disturbed sleep, impaired motor control | Heroin |
-> increased risk of preterm birth, increased stillbirth and increased likelihood of newborn needing to be in ICU | Maternal obesity |
70% lower risk of delivering between 20-28 weeks and 50% lower risk of delivering between 28-32 weeks; leads to neural tube defects | Folic Acid |
sensitive to developing brain and nervous system; reduced placental and fetal growth, miscarriage, preterm birth, lower intelligence | Mercury in fish |
Longest of the three stages Uterine contractions are 15-20 minutes apart and last up to 1 minute | First Stage |
When baby’s head starts to move through the cervix and the birth canal Ends when baby completely emerges from the mother’s body | Second Stage |
Afterbirth Placenta, umbilical cord, and other membranes are detached and expelled | Third Stage |
Used to assess health of newborns at 1 to 5 minutes after birth | Apgar Scale |
Performed within 24-36 hours after birth Assesses neurological development, reflexes, and reactions to people and objects | Brazelton Neonatal Behavioral Assessment Scale |
"offspring" of the NBAS Another assessment of newborn’s behavior, neurological and stress responses, and regulatory capacities | Neonatal Intensive Care Unit Network Neurobehavioral Scale |