Ch 3 Flashcards
ovulating
1 every 28 days corpus luteum (where ovum bursts) secretes hormones to makes uterus ready
conception
fertilized in falopian tubes, ovum lives for 24 hrs, sperm 6 days waiting 3-500 make it up of 300 million produced a day
egg fertilization
70% mortality rate
implantation
btwn 7-9th days, blastocyst burrows into uterine lining
amnion
forms from trophoblast, contains fluid that fusions and keeps temp right, 30% die by now
blastocyst
4th day forms hollow fluid filled ball
embroynic disk
inner layer of blastocyst, becomes organism
zygote
first 2 weeks, fertilization, impletation, start of placenta, palcenta and umbilical cord has developed
embryo
wks 2-8, groundwork for all structures and organs. ectoderm becomes neural tube, heart begins to pump, four chambers. limbs begin. liver and spleen makes blood, respond to touch, head and features form, neuro system vulnerable to toxins
chorion
surrounds amnion, villi and blood vessels emerge from it
ectoderm
nervous system and skin, embryonic period
mesoderm
muscles, skeleton, ciriculatorysystem, organs, embryonic period
endoderm
digestive system, lungs, kidney, glands, urinary tract
fetus period
9wk to birth, growth and finishing phase, lungs last
Fetus third month
kicks, lungs expand and contract, body becomes connected and organized
second trimester
organs are well developed by 20 weeks, most brain neurons in place
third trimester
22-26 weeks = viability, fetus gets personality
vernix
cheese like skin protection
languo
downy hair appears over body keeps vernix stuck
teratogens
refers to environmental agent that causes damage during prenatal period, depending on dose, heredity, age, neg influences(nutrition, medical care)
teratogen ex
drugs, EtOH, tobacco, radiation, pollution, infectious disease
fetal alcohol spectrum disorder
range of physical, mental, behavioral outcomes caused by prenatal EtOH exposure
fetal alcohol syndrome
slow physical growth, short eyelids; thin upper lip; smooth philtrum, brain injury or small head due to heavy drinking and 3 cognitive area impairments
partial fetal alcohol syndrome
2/3 facial abnormalities and 3 cognitive impairments
alcohol related neurodevelopment disorder
normal physical growth, 3 areas of cognitive growth
pre-natal nutrition
anencephaly , spine bifida
Rh factor
if mom neg and dad pos baby can be pos and if baby becomes pos moms immune system can enter baby and destroy organs and tissues
Stages of Childbirth
dilation and effacement of the cervix, delivery of the baby, delivery of the placenta
stages of labor
dialation and effacement, transition (contractions at high strength and freq, cervix open totally),; pushing(head appears), birth; delivery of placenta
Apgar Scale
Appearance, Pulse, Grimace, Activity, Respiration. Measured 0-2
analgesics
pain blocker
anesthetics
sensation blocker
pre-term infants
born before due date, may be in relation
small for dateinfants
probably bad nutrition, full term, bad placentas, baby defects
isolette
temp controlled bed, gentle rocking, visual or auditory stimulation, touch, filtered air
eye blink
shine light, quick eyelid close, permanent
rooting
touch cheek, head turns toward side until 3 wks
sucking
sucks rhythmically on anything in mouth, voluntary at 4 mts
moro
flail and pull in body due to drop or noise until 6 mts
palmar grasp
press finger against palm and baby grabs until 3-4 mts
tonic neck
turn head while infant on back and extends that arm and flexes other - fencing
stepping
when feet but no weight on ground until 2 mts unless skinny
babinski
stroke foot toe to heel toes fan and curl as foot twists until 8-12 mts
newborn touch
sensitive on mouth and feet, severe pain sometimes can use anesthetic
newborn taste/smell
prefer sweet at birth, can use smell to ID mom
newborn hearing
wide variety about, prefer complex, can distinguish at only few days, prefer human speech, recognize all human language
newborn vision
least developed sense at birth, limited acuity, not good at discriminating colors, track movement is first muscle exercise
neonatal behavioral assessment scale
evals NB relfexes, muscle tone, state changes, responsive to physical and social stimuli, used to compare across many nations
anoxia
oxygen deprivation at birth
