התפתחות מערכת העצבים

  • Published on
    13-Nov-2014

  • View
    277

  • Download
    3

Embed Size (px)

Transcript

Dr. Weaver 8681)) -CNS"

-PNS"

81

81 02

SEM

?

22 32

SEM

- 72

?

Primary Brain vesicles

- 23

5-6 "

IIII

II

IV

IV

-

Classification of the Sensory and Motor Neurons of Spinal Cord

3 1 2

marginal marginal mantle

Differentiation of neural crest cells.1)Dorsal Root ganglia )sensory .2Schwann cells )Meninges )cerebral and spinal .3 .4Cartilage cells of Branchial arches .5Adrenal Medulla .6Melanocytes .7)Sympathetic neuroblasts)Ganglia Preaortic Ganglia .8 Enteric Ganglia .9

Diffentiation of neural crest cells

Formation of the sympathetic ganglia and adrenal medulla

)Enteric ganglia(

)Suprarenal Gland )adrenal

5th week

1-S 1-S 1-S

2-L

3

Structure of the MeningesDura Mater Arachnoid Membrane Pia Mater

Development of the Meninges ))Spinal and Cerebral meningesPia Mater Primitive Menix )Mesechyme origin(

Neural CrestArachnoid membrane Dura Mater

- Myelencephalon ( )

3 1 2

marginal marginal mantle

Myelencephalon - )(

SA SVA GVA GSE SVE GVE

- Metencephalon

Development of the MetencephalonSA SVA GVA

GVE Abducens SVE

SE

Oculomotor

VE SE Oculomotor Trochlear