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NURS 5032 - Unit 1 - Fetal development
Exam Questions With Verified Answers
How long does the embryonic period last? - Answers✔beginning of the 3rd week through the 8th
week after conception
When are all major organ systems in place? - Answers✔end of the 8th week
What will teratogens do during the embryonic period? - Answers✔may cause major structural
and functional damage to developing organs
What develops during week 3 of the embryonic period? - Answers✔neural plate (becomes the
brain and spinal cord), CRL is 1.5 mm
What develops during week 4 of the embryonic period? - Answers✔ear and eye sockets form,
umbilical cord, upper and lower limb buds, formation of lung alveoli, CRL is 4.0 mm
What develops in weeks 5-6 of the embryonic period? - Answers✔eyes and ears continue to
develop, upper and lower limbs form, CRL is 13.0 mm
What develops in weeks 7-8 of the embryonic period? - Answers✔embryo starts to look like an
actual human, CRL is 30.0 mm, everything becomes more defined and larger
How long does the fetal period last? - Answers✔beginning of the 9th week after conception and
extending until birth
What occurs during the fetal period? - Answers✔major growth and refinement of established
organ systems
Can teratogens cause damage during the fetal period? - Answers✔yes, while less likely to affect
major structural development, can damage structures already formed and affect the CNS
What occurs in weeks 9-12 of the fetal period? - Answers✔first fetal movements, blood
production moved from liver to spleen, production of urine, external genitalia becomes
discernible, intestines move into the abdominal cavity, eyes close and do not reopen until week
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