LIFESPAN DEVELOPMENT EXAM SET
QUESTIONS WITH COMPLETE ANSWERS
Infertility - Answer-caused by chlamydia - hard to find asymptomatic.
This narrows/clogs Fallopian tube, thus prevents fertilization
Amniotic Sac - Answer-warm cushioning sac that protects embryo
Week 8-Birth, size increase of... - Answer-Fetal Period, about 7 months
Size of fetus will increase size 20-fold
Prenatal Test - Ultrasound sonography - Answer-High frequency sound waves are directed
into the pregnant woman's abdomen, echo from sounds is transformed into an image of
fetus' inner structure.
Determine sex of baby using Ultrasound (time) - Answer-Around 4 months
Down's Syndrome - Answer-Trisomy 21. older mothers have increased chance of having
kid with syndrome. Issues with baby; big head, flat nose, round face, short limbs, language
handicapped, tend to be cheerful and sympathetic
Pre-natal Test Amniocentesis - Answer-Tests 15th-18th week of pregnancy. Sample of
amniotic fluid withdrawn and test for chromosomal metabolic disorders.
Chorionic Villus sampling - Answer-prenatal medical procedure where a tiny tissue sample
from the placenta is removed and analyzed. Results in 10 days.
Gestation - Answer-Time frame of Conception to Birth. lasts 280 days from mom's last
period.
Fertilization - Answer-Fusion of sperm 23 chromosomes (n) with egg 23 chrosomes (n) to
make a Zygote
Zygote - Answer-Fertilized egg by one sperm penetrating into the egg.
Implantation - Answer-the embedding of the blastocyst in the uterine wall, takes place in the
second week after conception
Embryonic Period - Answer-Weeks 2-8 of prenatal development
Embryo - 3 layers - Answer-Ectoderm - outer layer, skin, sense organs, nervous sys
Mesoderm - middle layer, muscles, bone, circulatory system, and mesentery organs
Endoderm - inner layer, digestive system, lungs, glands
, 3 risk factors affect fetus in Mom - Answer-Age - teenagers are worst, dont checkup. Older
increase rate of birth complications
Diet and Nutrition - Need vitamin B9 Folic acid - lack of it causes spina bifida; spinal column
doesnt close, neurological disorders. Calcium and iron essential
Stress - High b.p, malnurition,
Teratogens - Answer-Agents that can potentially cause a birth defect or negatively alter
cognitive and behavioral outcomes of baby;
Drugs, pollutants, infectious diseases, environmental pollutatnts.
Stages of Birth - Answer-1st Stage - Oxytocin released from posterior pituitary to start
contracting the uterus. Cervix dilates 10-12cm
2nd Stage - Contractions push head into birth canal
and Baby is Born
3rd Stage - Placenta removal and umbilical cord is removed. can use umbilical cord for
stem cell therapy
Anoxia - Answer-no oxygen
C-section - Answer-Ceasarian section, cut belly and pull baby out.
Pre-term baby - Answer-Delivery before 37th week.
Very Pre-term baby - Answer-Delivery before 32nd week.
Low birth weight - Answer-less than 5 lbs.
Cephalocaudal directionality growth - Answer-head to tail
Proximodistal directionality growth - Answer-growth from center outward
Synaptic pruning - Answer-elimination of useless neurons.
Plasticity - Answer-capacity of brain to be modified by experience
Experience-expectant process - Answer-Brain is already prepared for expected "pre-wired"
process. for example eating, or involuntary responses of breathing
Experience-Dependent process - Answer-Forming new synaptic connections in response to
new processes; part of what creates personality
Reflexes - 3 categories - Answer-certain involuntary responses to stimuli. "built in"
reactions.
1. Approach - concerned with intatke; breathing, sucking, rooting
2. Avoidance - occurs in full blown reaction, hard to stop. ex: coughing, sneezing, blinking
3. Other - moro (startle) grabbing for support while falling.
QUESTIONS WITH COMPLETE ANSWERS
Infertility - Answer-caused by chlamydia - hard to find asymptomatic.
This narrows/clogs Fallopian tube, thus prevents fertilization
Amniotic Sac - Answer-warm cushioning sac that protects embryo
Week 8-Birth, size increase of... - Answer-Fetal Period, about 7 months
Size of fetus will increase size 20-fold
Prenatal Test - Ultrasound sonography - Answer-High frequency sound waves are directed
into the pregnant woman's abdomen, echo from sounds is transformed into an image of
fetus' inner structure.
Determine sex of baby using Ultrasound (time) - Answer-Around 4 months
Down's Syndrome - Answer-Trisomy 21. older mothers have increased chance of having
kid with syndrome. Issues with baby; big head, flat nose, round face, short limbs, language
handicapped, tend to be cheerful and sympathetic
Pre-natal Test Amniocentesis - Answer-Tests 15th-18th week of pregnancy. Sample of
amniotic fluid withdrawn and test for chromosomal metabolic disorders.
Chorionic Villus sampling - Answer-prenatal medical procedure where a tiny tissue sample
from the placenta is removed and analyzed. Results in 10 days.
Gestation - Answer-Time frame of Conception to Birth. lasts 280 days from mom's last
period.
Fertilization - Answer-Fusion of sperm 23 chromosomes (n) with egg 23 chrosomes (n) to
make a Zygote
Zygote - Answer-Fertilized egg by one sperm penetrating into the egg.
Implantation - Answer-the embedding of the blastocyst in the uterine wall, takes place in the
second week after conception
Embryonic Period - Answer-Weeks 2-8 of prenatal development
Embryo - 3 layers - Answer-Ectoderm - outer layer, skin, sense organs, nervous sys
Mesoderm - middle layer, muscles, bone, circulatory system, and mesentery organs
Endoderm - inner layer, digestive system, lungs, glands
, 3 risk factors affect fetus in Mom - Answer-Age - teenagers are worst, dont checkup. Older
increase rate of birth complications
Diet and Nutrition - Need vitamin B9 Folic acid - lack of it causes spina bifida; spinal column
doesnt close, neurological disorders. Calcium and iron essential
Stress - High b.p, malnurition,
Teratogens - Answer-Agents that can potentially cause a birth defect or negatively alter
cognitive and behavioral outcomes of baby;
Drugs, pollutants, infectious diseases, environmental pollutatnts.
Stages of Birth - Answer-1st Stage - Oxytocin released from posterior pituitary to start
contracting the uterus. Cervix dilates 10-12cm
2nd Stage - Contractions push head into birth canal
and Baby is Born
3rd Stage - Placenta removal and umbilical cord is removed. can use umbilical cord for
stem cell therapy
Anoxia - Answer-no oxygen
C-section - Answer-Ceasarian section, cut belly and pull baby out.
Pre-term baby - Answer-Delivery before 37th week.
Very Pre-term baby - Answer-Delivery before 32nd week.
Low birth weight - Answer-less than 5 lbs.
Cephalocaudal directionality growth - Answer-head to tail
Proximodistal directionality growth - Answer-growth from center outward
Synaptic pruning - Answer-elimination of useless neurons.
Plasticity - Answer-capacity of brain to be modified by experience
Experience-expectant process - Answer-Brain is already prepared for expected "pre-wired"
process. for example eating, or involuntary responses of breathing
Experience-Dependent process - Answer-Forming new synaptic connections in response to
new processes; part of what creates personality
Reflexes - 3 categories - Answer-certain involuntary responses to stimuli. "built in"
reactions.
1. Approach - concerned with intatke; breathing, sucking, rooting
2. Avoidance - occurs in full blown reaction, hard to stop. ex: coughing, sneezing, blinking
3. Other - moro (startle) grabbing for support while falling.
