Researchers Studying Neural Crest Cell Migration in a Human Fetus

question 22

Multiple Choice

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

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Definitions:

Unforeseeable

Situations or events that could not have been predicted or expected with reasonable foresight.

Assumption of the Risk

Assumption of the risk is a legal doctrine whereby an individual acknowledges and accepts the known risks associated with an activity, often relieving another party of liability for harm that may result.

Liability

The state of being responsible for something, especially by law, including debts or legal obligations.

Harm

Damage or injury that affects someone or something in a negative way, including physical, psychological, financial, or reputational impacts.