ATI Nursing Proctored Pediatric Test Banks Related

Review ATI Nursing Proctored Pediatric Test Banks related questions and content

In embryonic period, formation of all of the following occur by the given time EXCEPT

  • A. 8 days - blastocyst formation
  • B. 6 weeks - ectoderm formation
  • C. 8 weeks - crown-rump length about 3 cm
  • D. 10 weeks - endoderm formation
Correct Answer: D

Rationale: Endoderm formation occurs much earlier than 10 weeks in the embryonic period.