Child Psychology Test 1 Study Guide Questions
1.What is Ovulation?: Where the ovum is released from the ovary and
travels through the fallopian tube, where is can be fertilized within
24 hours.
If the ovum is not fertilized = menstrual
period If the ovum is fertilized = baby
(step 1)
2.What is fertilization?: The sperm travels through the uterus and the
fallopian tube to fertilize the ovum.
3.How long does the Zygote (AKA Germinal Period) last?: About the
first 2 weeks and it begins when the egg is fertilized.
4.What is the first step the Zygote goes through?: Cell division: The zygote
begins to duplicate, first slowly and then more rapidly, while still in the
fallopian tube.
5.What is the zygote called after the first 4 days?: A blastocyst: a hollow,
fluid filled ball of about 100 cells. (it enters the uterus around this
stage)
6.What is implantation?: at the end of the first week, typically between
,days 7 and 9, the tiny mass of cells (blastocyst) burrows deep into the
wall of the uterus/ uterine lining (the lining is now thick enough for the
zygote to burrow into and grow)
7.When does the Germinal period end?: after about 2 weeks, when the
blastocyst is fully implanted in the wall of the uterus and is releasing the
HCG hormone
8.What is the HCG Hormone?: pregnancy hormone. Will show on a test.
Positive pregnancy test = 2 weeks pregnant.
9.What are the odds the zygote does not survive?: 30% by preventing
implan- tation when sperm and ovum do not join properly or when cell
duplication does not begin
10.What is the placenta?: it forms between the mother and the
developing organ- ism. It permits nutrients and oxygen to reach the
developing organism without the mother and embryo's blood mixing.
11.What is the amnion?: is a membrane that encloses the organism in
amniotic fluid, which keeps the temperature constant and provides a
cushion for the devel- oping organism.
12.What is the chorion?: Another protective membrane which surrounds
the am- nion ny the end of the second week. Tiny villi (blood vessels)
, emerge and burrow into the uterine wall, bringing the embryo and
mother's blood closer together to develop the placenta.
13.What is a yolk sac?: produces blood cells until the developing liver,
spleen, and bone marrow are mature enough to take over this function
14.What is an umbilical cord?: Connects the placenta to the developing
organism. It contains one large vein (that delivers blood loaded with
nutrients) and two arteries (that will remove waste products)
15.How long is the Period of the Embryo last?: -From 3-8 weeks after
consump- tion (about 6 weeks in length)
16.What is the Ectoderm: Will be the nervous system and skin
17.What is the mesoderm?: will develop into muscles, skeleton,
circulatory sys- tem, and other internal organs.
18.What is the Endoderm?: Will become the digestive system, lungs,
urinary tract, and endocrine glands
19.What happens at the start of the Embryonic Period?: -The nervous
system develops the fastest
-The ectoderm folds over the neural tube (primitive spinal cord) and the
top swells to form the primitive brain (prenatal vitamins/ folic acid
needed)
1.What is Ovulation?: Where the ovum is released from the ovary and
travels through the fallopian tube, where is can be fertilized within
24 hours.
If the ovum is not fertilized = menstrual
period If the ovum is fertilized = baby
(step 1)
2.What is fertilization?: The sperm travels through the uterus and the
fallopian tube to fertilize the ovum.
3.How long does the Zygote (AKA Germinal Period) last?: About the
first 2 weeks and it begins when the egg is fertilized.
4.What is the first step the Zygote goes through?: Cell division: The zygote
begins to duplicate, first slowly and then more rapidly, while still in the
fallopian tube.
5.What is the zygote called after the first 4 days?: A blastocyst: a hollow,
fluid filled ball of about 100 cells. (it enters the uterus around this
stage)
6.What is implantation?: at the end of the first week, typically between
,days 7 and 9, the tiny mass of cells (blastocyst) burrows deep into the
wall of the uterus/ uterine lining (the lining is now thick enough for the
zygote to burrow into and grow)
7.When does the Germinal period end?: after about 2 weeks, when the
blastocyst is fully implanted in the wall of the uterus and is releasing the
HCG hormone
8.What is the HCG Hormone?: pregnancy hormone. Will show on a test.
Positive pregnancy test = 2 weeks pregnant.
9.What are the odds the zygote does not survive?: 30% by preventing
implan- tation when sperm and ovum do not join properly or when cell
duplication does not begin
10.What is the placenta?: it forms between the mother and the
developing organ- ism. It permits nutrients and oxygen to reach the
developing organism without the mother and embryo's blood mixing.
11.What is the amnion?: is a membrane that encloses the organism in
amniotic fluid, which keeps the temperature constant and provides a
cushion for the devel- oping organism.
12.What is the chorion?: Another protective membrane which surrounds
the am- nion ny the end of the second week. Tiny villi (blood vessels)
, emerge and burrow into the uterine wall, bringing the embryo and
mother's blood closer together to develop the placenta.
13.What is a yolk sac?: produces blood cells until the developing liver,
spleen, and bone marrow are mature enough to take over this function
14.What is an umbilical cord?: Connects the placenta to the developing
organism. It contains one large vein (that delivers blood loaded with
nutrients) and two arteries (that will remove waste products)
15.How long is the Period of the Embryo last?: -From 3-8 weeks after
consump- tion (about 6 weeks in length)
16.What is the Ectoderm: Will be the nervous system and skin
17.What is the mesoderm?: will develop into muscles, skeleton,
circulatory sys- tem, and other internal organs.
18.What is the Endoderm?: Will become the digestive system, lungs,
urinary tract, and endocrine glands
19.What happens at the start of the Embryonic Period?: -The nervous
system develops the fastest
-The ectoderm folds over the neural tube (primitive spinal cord) and the
top swells to form the primitive brain (prenatal vitamins/ folic acid
needed)
