NURS 5032 - UNIT 1 - FETAL DEVELOPMENT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

NURS 5032 - UNIT 1 - FETAL DEVELOPMENT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED How long does the embryonic period last? beginning of the 3rd week through the 8th week after conception When are all major organ systems in place? end of the 8th week What will teratogens do during the embryonic period? may cause major structural and functional damage to developing organs What develops during week 3 of the embryonic period? neural plate (becomes the brain and spinal cord), CRL is 1.5 mm What develops during week 4 of the embryonic period? 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? 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? 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? beginning of the 9th week after conception and extending until birth What occurs during the fetal period? major growth and refinement of established organ systems Can teratogens cause damage during the fetal period? 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? 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 26 What occurs during weeks 13-16 of the fetal period? fetus grows rapidly in length, pregnant person may feel quickening What occurs during weeks 17-20 of the fetal period? fetal movements feel like fluttering, vernix case