This site is 100% ad supported. Please add an exception to adblock for this site.

child dev


undefined, object
copy deck
babys soft spot to fit through birth control
vernix caseosa
oily protective coating
nicotine results in
a low birth weight baby
# chromosones in a normal cell
3 domains of development
-personality/social emotional

sex cell (ovum and sperm BEFORE they unite)
fertilized. after ovum and sperm unite
# days in full term gestation
266 days
identical twins. a fertilized egg divides
fraternal twins. ovulating 2 separate ova, fertilized by 2 separate sperm
umbilical cord
way conceptus gets oxygen, blood supply, eliminates waste
APGAR scale
-------scoring baby for health purposes

spontaneous abortion
natural expulsion from the uterus of an embryo that cant survive outside the womb
something that causes birth defects
2 principles of growth and development
cephalocaudal principle
development goes starts from head and goes to tail
proximodistal principle
development proceeds from the center and grows outward
3 stages of prenatal development
-embrionic stage

fuzzy prenatal hair
3rd stage of labor
expulsion of placenta
10 mins to an hour
placenta and umbilical cord expelled

2nd stage of labor
-descent and emergence of baby
-1 or 2 hrs
-begins when babys head moves thru cervix to vaginal canal
-ends when baby is born

1st stage of labor
-dilation of cervix
-longest stage, 12 to 14 hrs
-lasts until cervix is 10 cm dilated

-an infection caused by a parasite
-can cause fetal brain damage, blindness, seizures, miscarriage, or stillbirth
-contains maternal/embryonic tissue
-allows oxygen, nourishment and wastes to pass between mom and baby
-combats infection
-gives immunity to disease
-prepare breasts for lactations
-stimulate uterine contractions

amniotic sac
fluid filled membrane that encases developing baby, giving it room to move
-middle layer of embryonic disc
-inner layers of skin, muscles, skeleton, excretory system, circulatory system
-upper layer of embryonic disc
-outer layer of skin, nails, hair, teeth, sensory organs, nervous system, brain, spinal cord
-inner layer of embryonic disc
-digestive system, liver, pancreas, respiratory system, salivary glands
fluid filled sphere that floats freely in the uterus until 6th day after fertilization
embryonic stage
-2 to 8 weeks
-organs and major body systems develop
-critical period, embryo is most vulnerable

germinal stage
-first 2 weeks after fertilization
-zygote divides and becomes complex and implants in wall of uterus
-blood test from mother for alpha fetoprotein
-can indicate defects in formation of brain or spinal cord, can also predict down syndrome
-sample of amniotic fluid is withdrawn and analyzed
-obtains fetal cells for testing
-can detect chromosonal disorders
-99% accurate
-women over age 35

-chorionic villus sampling
-tissues from hairlike chorionic villi are removed from placenta and analyzed
-early diagnosis of birth defects
-between 10-12 weeks gestation

recessive inheritance
when a person gets the recessive allele from both parents
dominant inheritance
when a person is heterozygous (possessing different alleles) for a particular trait, the dominant allele governs
pigets psychocognitive theory (sensory motor)
-birth to age 2
-confined to "here and now"
-"out of sight out of mind"
-unable to use symbols i.e. talk

eriksons "trust vs mistrust" stage theory
-birth to 1 year
-with warm responsive care, infants gain a sense of trust that the world is good
-mistrust occurs when they are handled harshly

psychosocial development
change in personality, emotions and social relationships
cognitive development
-change in mental abilities
-learning, memory, language, thinking, moral reasoning, creativity
-closely related to physical, social, and emotional growth

physical development
growth of body, brain, sensory capacities, motor skills, health
gregor mendel claim to fame-
dominant + recessive inheritance

Deck Info