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Questions and Answers
Which process divides the ectoderm into three cell types?
Which process divides the ectoderm into three cell types?
- Primary neurulation (correct)
- Secondary neurulation
- Neural plate formation
- Neural tube closure
By what week of pregnancy does neural tube closure usually occur in humans?
By what week of pregnancy does neural tube closure usually occur in humans?
- Third week
- Fourth week (correct)
- Second week
- First week
What does the neural tube develop into?
What does the neural tube develop into?
- The brain
- The spinal cord
- The central nervous system (correct)
- All of the above
What happens to the neural groove as the neural fold become elevated?
What happens to the neural groove as the neural fold become elevated?
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When does primary neurulation begin?
When does primary neurulation begin?
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