Question
मेंढक में तंत्रिकाभवन की प्रक्रिया का वर्णन करें।
Answer :
Word Count : 441
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मेंढक में तंत्रिकाभवन (Neurulation) का процесс भ्रूण विकास में एक महत्वपूर्ण चरण है, जिसके द्वारा केंद्रीय तंत्रिका तंत्र का आरंभिक रूप बनता है। यह प्रक्रिया अंडाणु निषेचन के बाद विकास के पहले सप्ताहों में शुरू होती है और यह विशेष रूप से भ्रूण के मध्य रेखा पर होती है। तंत्रिकाभवन मुख्य रूप से एक्टोडर्म से उत्पन्न होता है और इसमें तंत्रिका प्लेट, तंत्रिका沟 (neural groove), तंत्रिका ट्यूब और तंत्रिका कशेरुकाओं का निर्माण शामिल होता है। तंत्रिकाभवन की शुरुआत तंत्रिका प्लेट (neural plate) के गठन से होती है। यह प्लेट भ्रूण के पीठीय पक्ष
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