
Ãкº»ÃÐÊÒ·àÃÔèÁÁÕ¡ÒþѲ¹Òã¹ÃÐÂзéÒºͧ¡Ãкǹ¡ÒÃà¨ÃԢͧµÑÇÍè͹ (embryogenesis) ¡è͹·Õèà¹×éÍàÂ×èÍ»ÃÐÊÒ·¨Ðà¡Ô´¢Öé¹¹Ñé¹µÑÇÍè͹ä´éÊÃéÒ§à¹×éÍàÂ×èÍ 3 ªÑé¹äÇéáÅéÇ «Öè§ä´éá¡è
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1.เนื้อเยื่อชั้นใน endoderm |
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2.เนื้อเยื่อชั้นกลาง mesoderm |
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3.เนื้อเยื่อชั้นนอก ectoderm |
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| ÃÐÂÐ 3 ¡ÃÐà»ÒÐ (three-vesicle stage) | ÃÐÂÐ 5 ¡ÃÐà»ÒÐ (five-vesicle stage) | â¤Ã§ÊÃéÒ§ÊÁͧ㹼ÙéãËè | ªèͧ¹éÓàÅÕé§ÊÁͧ (CFS) ·ÕèÍÂÙèã¡Åé |
| 1. ÊÁͧÊèǹ˹éÒ Forebrain (Prosencephalon) | 1a. Telencephalon | cerebral cortex, basal ganglia, hippocampal formation, amygdala, olfactory bulb | lateral ventricles |
| 1b. Diencephalon | thalamus, hypothalamus, subthalamus, epithalamus, retina, optic nerves and tracts | third ventricle | |
| 2. ÊÁͧÊèǹ¡ÅÒ§ Midbrain (Mesencephalon) | 2. Mesencephalon | midbrain | cerebral aqueduct |
| 3. ÊÁͧÊèǹ·éÒ Hindbrain (Rhombencephalon) | 3a. Metencephalon |
pons áÅÐcerebellum |
fourth ventricle |
| 3b. Myelencephalon | medulla | fourth ventricle | |
| 4. Êèǹ»ÅÒ¢ͧ nueural tube | Êèǹ»ÅÒ¢ͧ nueural tube | ä¢ÊѹËÅѧ (spinal cord) | central canal |