School of Neuroscience for Thai Youth

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Gastrulation

                         

Ãкº»ÃÐÊÒ·àÃÔèÁÁÕ¡ÒþѲ¹Òã¹ÃÐÂзéÒºͧ¡Ãкǹ¡ÒÃà¨ÃÔ­¢Í§µÑÇÍè͹ (embryogenesis) ¡è͹·Õèà¹×éÍàÂ×èÍ»ÃÐÊÒ·¨Ðà¡Ô´¢Öé¹¹Ñé¹µÑÇÍè͹ä´éÊÃéÒ§à¹×éÍàÂ×èÍ 3 ªÑé¹äÇéáÅéÇ «Öè§ä´éá¡è

 1.เนื้อเยื่อชั้นใน

endoderm                  

 ¾Ñ²¹Òà»ç¹ Ãкº·Ò§à´Ô¹ÍÒËÒà »Í´ µÑº

 2.เนื้อเยื่อชั้นกลาง

mesoderm

 ¾Ñ²¹Òà»ç¹ ÃкºäËÅàÇÕ¹âÅËÔµ à¹×éÍàÂ×èÍà¡ÕèÂǾѹ ¡ÅéÒÁà¹×éÍ áÅÐ ¡Ãд١

 3.เนื้อเยื่อชั้นนอก

ectoderm

 ¾Ñ²¹Òà»ç¹ Ãкº»ÃÐÊÒ· áÅÐ ¼ÔÇ˹ѧ

 

¡ÒþѲ¹Òáºè§µÑÇà»ç¹ÊÁͧÊèǹµèÒ§æ ã¹µÑÇÍè͹áÅÐâ¤Ã§ÊÃéÒ§ÊÁͧàÁ×èÍÃÐÂÐâµàµçÁÇÑÂ

  ÃÐÂÐ 3 ¡ÃÐà»ÒÐ (three-vesicle stage)  ÃÐÂР5 ¡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

                              

 

Axon outgrowth was seen in Drosophila

The pattern development of both CNS and PNS of Drosophila. Note the formation of neuroblast

Apoptosis