Researchers Studying Neural Crest Cell Migration in a Human Fetus

Researchers studying neural crest cell migration in a human fetus observe normal activity beginning at the 8th week of embryogenesis with interruption during the 12th week, when migration is typically completed.  Which of the following structures is most likely to lack innervation as a result of this disruption?

A) Esophagus
B) Duodenum
C) Jejunum
D) Ileum
E) Cecum
F) Transverse colon
G) Rectum

Correct Answer:

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