KIN 360 Chapter 29 Exam Questions and Answers Already Passed Latest Update 2025-2026
period of time from conception until birth - Answersprenatal period
what are the three stages of the prenatal period - Answersgerminal period, embryonic period,
and fetal period
primitive germ layers are formed during the first 2 weeks of development - Answersgerminal
period
major organ systems develop from the 2nd to the 8th week of development - Answersorgan
systems grow and mature during the last 30 weeks of development
what is an embryo - Answersdeveloping human from fertilization to the end of the 8th week of
development
what is a fetus - Answersdeveloping human from 8 weeks to birth
the mother's last menstrual period is used to calculate the age of the unborn child -
Answersclinical age
14 days less than clinical age, begins with fertilization to describe the timing of developmental
events - Answerspostovulatory age
what is united in fertilization - Answerssecondary oocyte and sperm cell
what is the result of the union of the secondary oocyte and sperm cell - Answersa zygote is
formed
what must happen for fertilization to occur - Answersa sperm cell must pass through the
corona radiata, zona pellucida, and oocyte plasma membrane
granulosa cells expelled from the follicle with the secondary oocyte that form a barrier to sperm
cells reaching the oocyte - Answerscorona radiata
extracellular membrane composed primarily of glycoproteins - Answerszona pellucida
cap on the head of the sperm cell that contains enzymes that break down the zona pellucida -
Answersacrosome
what does sperm bind to and undergo during fertilization - Answersthe zona pellucida and
undergoes the acrosomal reaction
what happens when the sperm cell makes contact with the plasma membrane of the oocyte -
Answersit enters the oocyte
what happens to the membrane - Answersdepolarization occurs
, what does the entrance of the sperm cell into the secondary oocyte stimulate -
Answerscompletion of meiosis II and the formation of a second polar body
how is a diploid nucleus produced - Answersby the fusion of the male and female pronuclei in
the center of the cell
what does a diploid nucleus conclude - Answerszygote results, completes fertilization
when does early cell division occur - Answers18-39 hrs post-fertilization
what happens in early cell division - Answersthe zygote divides to form two cells
what happens as the number of cells increase in early cell division - Answersthe size of each
cell decreases
each cell can give rise to any tissue necessary for development - Answerstotipotent
the ability to develop into a wide range of tissues, but not all the tissues necessary for
development - Answerspluripotent
solid ball of 12 or more cells - Answersmorula
when does the morula happen - Answers4-5 days post ovulation
what do trophoblasts form - Answersthe placenta
what does the inner cell mass form - Answersthe embryo proper
what happens during implantation - Answersburrowing of the blastocyst into the uterine wall
when does implantation occur - Answers6-7 days after ovulation when the trophoblasts adhere
to endometrium
when is implantation completed - Answersby the 14th day after ovulation and after fertilization
what is the chorion - Answersembryonic component of the placenta
what does the chorion produce - AnswershCG
when does hCG begin - Answersafter implantation and reaches peak 8-9 weeks after
fertilization
what is the endometrium - Answersmaternal component of the placenta
do fetal and maternal blood mix - Answersno
what is the state of hCG during the first trimester - Answersit peaks and is only produced by the
placenta
period of time from conception until birth - Answersprenatal period
what are the three stages of the prenatal period - Answersgerminal period, embryonic period,
and fetal period
primitive germ layers are formed during the first 2 weeks of development - Answersgerminal
period
major organ systems develop from the 2nd to the 8th week of development - Answersorgan
systems grow and mature during the last 30 weeks of development
what is an embryo - Answersdeveloping human from fertilization to the end of the 8th week of
development
what is a fetus - Answersdeveloping human from 8 weeks to birth
the mother's last menstrual period is used to calculate the age of the unborn child -
Answersclinical age
14 days less than clinical age, begins with fertilization to describe the timing of developmental
events - Answerspostovulatory age
what is united in fertilization - Answerssecondary oocyte and sperm cell
what is the result of the union of the secondary oocyte and sperm cell - Answersa zygote is
formed
what must happen for fertilization to occur - Answersa sperm cell must pass through the
corona radiata, zona pellucida, and oocyte plasma membrane
granulosa cells expelled from the follicle with the secondary oocyte that form a barrier to sperm
cells reaching the oocyte - Answerscorona radiata
extracellular membrane composed primarily of glycoproteins - Answerszona pellucida
cap on the head of the sperm cell that contains enzymes that break down the zona pellucida -
Answersacrosome
what does sperm bind to and undergo during fertilization - Answersthe zona pellucida and
undergoes the acrosomal reaction
what happens when the sperm cell makes contact with the plasma membrane of the oocyte -
Answersit enters the oocyte
what happens to the membrane - Answersdepolarization occurs
, what does the entrance of the sperm cell into the secondary oocyte stimulate -
Answerscompletion of meiosis II and the formation of a second polar body
how is a diploid nucleus produced - Answersby the fusion of the male and female pronuclei in
the center of the cell
what does a diploid nucleus conclude - Answerszygote results, completes fertilization
when does early cell division occur - Answers18-39 hrs post-fertilization
what happens in early cell division - Answersthe zygote divides to form two cells
what happens as the number of cells increase in early cell division - Answersthe size of each
cell decreases
each cell can give rise to any tissue necessary for development - Answerstotipotent
the ability to develop into a wide range of tissues, but not all the tissues necessary for
development - Answerspluripotent
solid ball of 12 or more cells - Answersmorula
when does the morula happen - Answers4-5 days post ovulation
what do trophoblasts form - Answersthe placenta
what does the inner cell mass form - Answersthe embryo proper
what happens during implantation - Answersburrowing of the blastocyst into the uterine wall
when does implantation occur - Answers6-7 days after ovulation when the trophoblasts adhere
to endometrium
when is implantation completed - Answersby the 14th day after ovulation and after fertilization
what is the chorion - Answersembryonic component of the placenta
what does the chorion produce - AnswershCG
when does hCG begin - Answersafter implantation and reaches peak 8-9 weeks after
fertilization
what is the endometrium - Answersmaternal component of the placenta
do fetal and maternal blood mix - Answersno
what is the state of hCG during the first trimester - Answersit peaks and is only produced by the
placenta
