CNUR 303: Unit 1 - Fetal Development Exam |
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Latest Update 2026/2027
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Practice questions for this set
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From the amnion as the allantois attaches the embryo to the yolk sac.
Choose an answer
Why is the embryonic period
1 Define prenatal development 2 considered a critical period of
development?
3 How is the umbilical cord formed? 4 Explain the process of cleavage
Don't know?
Terms in this set (42)
, Define prenatal development The process of rapid change and growth occurring
in the 40 weeks prior to birthing a child.
What are the three stages of prenatal 1. Pre-embryonic: Conception - end of week 2
development? (implantation)
2. Embryonic: Implantation - 8
3. Fetal: Week 9 - birth
Define gestation Intrauterine development from conception through
birth.
What occurs at fertilization in the The egg and sperm fuse to form a zygote.
pre-embryonic period?
Explain the process of cleavage The zygote travels through the fallopian tube for
three days, undergoing rapid mitotic division.
Through this process, many smaller daughter cells
are produced (blastomeres).
Define trophoblast The outer layer of cells that will form the placenta
and membranes.
Define blastocyst Inner mass of cells that forms a fluid-filled cavity
separating the amnion from the embryonic disc.
Explain the key processes in the pre- - Adhesion occurs (blastocyst attaches to uterine
embryonic period lining)
- Increased vascularization unites the zygote and
uterine tissues
- Trophoblasts form villi
- Blastocyst burrows into the endometrium, which
may cause spotting
Questions with 100% Correct Answers | Verified |
Latest Update 2026/2027
Save
Practice questions for this set
Learn 1 /7 Study using Learn
From the amnion as the allantois attaches the embryo to the yolk sac.
Choose an answer
Why is the embryonic period
1 Define prenatal development 2 considered a critical period of
development?
3 How is the umbilical cord formed? 4 Explain the process of cleavage
Don't know?
Terms in this set (42)
, Define prenatal development The process of rapid change and growth occurring
in the 40 weeks prior to birthing a child.
What are the three stages of prenatal 1. Pre-embryonic: Conception - end of week 2
development? (implantation)
2. Embryonic: Implantation - 8
3. Fetal: Week 9 - birth
Define gestation Intrauterine development from conception through
birth.
What occurs at fertilization in the The egg and sperm fuse to form a zygote.
pre-embryonic period?
Explain the process of cleavage The zygote travels through the fallopian tube for
three days, undergoing rapid mitotic division.
Through this process, many smaller daughter cells
are produced (blastomeres).
Define trophoblast The outer layer of cells that will form the placenta
and membranes.
Define blastocyst Inner mass of cells that forms a fluid-filled cavity
separating the amnion from the embryonic disc.
Explain the key processes in the pre- - Adhesion occurs (blastocyst attaches to uterine
embryonic period lining)
- Increased vascularization unites the zygote and
uterine tissues
- Trophoblasts form villi
- Blastocyst burrows into the endometrium, which
may cause spotting
