Detailed Answers 2025
When is the germinal period? - Answer-first 2 weeks after conception
/.What is fertilized ovum called? - Answer-Zygote
/.When does zygote make first cell division? - Answer-Within 36 hrs of fertilization.
Then will divide every 12 to 15 hrs after as it moves down fallopian tube.
/.What is a blastocyte? - Answer-the cell that is preparing for implantation during the
germinal stage.
/.When does the placenta form and what is it? - Answer-During germinal stage. It is a
projection from the uterus.
/.When is the embryonic stage? - Answer-Week 3 to 8. Fastest paced development
/.When are all the major organs and neural tube formed? - Answer-embryonic stage
/.When is the fetal stage? - Answer-From the 9th week until birth
/.What is the age of viability? - Answer-22-23 weeks
/.When is the first trimester, and what hormones are produced? - Answer-First three
months. Formation of the fetus' main organs.
The body produces progesterone and the placenta produces HCG
/.Important changes during second trimester? - Answer-Month 4-6.
~week 18 is the quickening.
/.What is down syndrome? - Answer-disorder caused by cell-division error called
nondisjunction. An extra piece of chromosome attaches to pair 21. Child is born with 47
chromosomes instead of 46.
/.Single gene disorder - Answer-Genetic disorder that can be passed down as dominant
(50/50), recessive (with two carriers, 25%, with one carrier, disease free) or sex-linked
(boys 50/50 with mother carrier).
/.Birth stages - Answer-1) Dialation and effacement
2) Birth
3) Expulsion of placenta
, /.What is an apgar score - Answer-Measure of child's heart rate, muscle tone,
respiration, reflex response and color rated on 0 to 2 at 1 minute and 5 minutes old.
Apgar over 7 at 5 min is good.
/.What is a low birth weight baby? How do we intervene? - Answer-<5 1/2 lbs. Neonatal
ICU, kangaroo care
/.Where does the US stand on infant mortality? - Answer-46th
/.Benefits of breastfeeding - Answer-increased mylenation, resistance to cold and flu,
higher intelligence tests
/.What is the purpose of crying? - Answer-Communication. Peak at 1mo, change at 4mo
with the blossoming of the cortex, then starts to express needs.
/.What is kangaroo care? - Answer-baby wearing. helps premies grow.
/.Sleep stages - Answer-Stage 1-4 REM. Babies immediately enter REM and spend
most of their time there.
/.Habituation - Answer-The fact that we lose interest in a new object after some time
/.Face perception - Answer-Making sense of human faces. Newborns follow facelike
patterns. Preference toward mother as early as one week old, as well as more attractive
faces. Look longer at faces whose eyes are gazing at them.
/.Visual Cliff - Answer-By 8 months, babies wont crawl over space perceived as cliff
/.Sensorimotor intelligence stage 1 & 2 - Answer-Primary circular reactions
(habits/action oriented schemas repeated again and again) that circle around child's
own body. eg. sucking toes or thumb.
1-4 months
/.Sensorimotor intelligence stage 3 & 4 - Answer-Secondary circular reactions that focus
on environmental objects.
4mo-1yr (substage 4-8mo using single action, form 8-12 mo will, eg, use both hands)
/.Sensorimotor intelligence stage 5 & 6 - Answer-1-2y Tertiary circular reactions. Shows
flexibility exploring properties of objects.
/.Critiques on Piaget - Answer-Timing was off. More creative testing strategies have
revealed babies grasp basics of physical reality before 1. Also, development is more
gradual
/.Universal sequence of language development - Answer-2-4m, cooing
5-11m, babbling