NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Week 1-2
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Week 2-3
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Week 3-4
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Week 4-5
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Week 5-6
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Detailed explanation-1: -Although neurulation begins in the third week, the process does not complete until the fourth week of development. Signals from the notochord and prechordal plate in the mesoderm induces ectoderm cells rostral to the primitive node to form the neural plate.
Detailed explanation-2: -It starts during the 3rd and 4th week of gestation. This process is called primary neurulation, and it begins with an open neural plate, then ends with the neural plate bending in specific, distinct steps. [1] These steps ultimately lead to the neural plate closing to form the neural tube.
Detailed explanation-3: -Near the end of this week, the blastocyst will attach itself to the endometrium, the lining of the uterus. This is called implantation. The implantation in the uterus creates an essential connection-the endometrium provides the developing embryo with nutrients and removes wastes.