Exam 2 Flashcards
(33 cards)
3 developmental periods
Germinal
Embryonic
Fetal
Teratogens
Medications Illness Alcohol Radiation Injury
Germinal period
2 weeks
Union of ovum and sperm
Rapid cell division
Implantation into the uterine lining
Embryonic period
2 weeks - 8th week
Development of placenta, umbilical cord, and amniotic fluid
Embryonic disc changes
Ectoderm
Outer layer
Skin
Neurology
Mesoderm
Middle layer
Blood
Muscles
Excretory system
Endoderm
Inner layer
Digestive
Endocrine
Fetal period
9weeks to delivery
Major period of function and maturation
Critical periods
Critical Period
Periods of feral development that an accident here for a fetus would be very intense and likely harmful. Damage dependent on timing, intensity, duration type of toxin and threshold.
Age of viability
Age in weeks where a fetus has a 50% chance of surviving outside the womb (21-22 weeks) keep in mind that the longer the baby stays. In the womb the better there chance of survival goes up.
Three development trends
Cephalocaudal
Promiximodistal
Gross to specific
Psychosocial issues
Identification of a new role
Socialization
Ability to provide
Decisions about the baby
Chronic villus sampling
Done early 8-12 weeks
Amniocentesis
Done 14th-20th
Leboyer method
Quiet room
Baby delivered into water to make birth less dramatic
Doula
Aids mother and father with pregnancy
Apgar testing
Score 1-10 based on babies appearance, breathing, heart beat, reflexes, muscle tone, activity.
Full term infant
38- 42 weeks
Premature
Baby born < 35 weeks
Preterm
Baby born35-38 weeks
Small for gestational
Babies < 5lbs 8ounces
Large for gestational age
Babies > 10 lbs
Physical Domain
Growth
Habitual response
Habituation- babies in ICU get used to bright lights and noise
Cognitive domain
Infant senses Infant reflexes survival and primitive Memory and cognition neurotransmitters Language and communication Psychosocial development depends on parent care
