Neurulation is completed on day:
Correct Answer: None of the above
Description: Closure of the cranial neuropore occurs at approximately day 25 (18- to 20-somite stage), whereas the posterior neuropore closes at day 28 (25-somite stage). Neurulation is then complete, and the central nervous system is represented by a closed tubular structure with a narrow caudal poion, the spinal cord, and a much broader cephalic poion characterized by a number of dilations, the brain vesicles Ref: Langman's embryology 11th edition Chapter 5.
Category:
Anatomy
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