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  • 1.DEPTOF NEUROLOGY,
    KING GEORGE HOSPITAL,
    VIZAG.
    EMBRYOLOGY OF THE BRAIN

2. EMBRYOLOGY OF THE BRAIN
The neural tube and its subdivisions
The neural crest
Histological components ofthe CNS
Development of medulla oblongata
Development ofpons
Development of the midbrain
Development ofthe cerebellum
Development of the cerebral hemispheres
3. THE NEURAL TUBE AND ITS SUBDIVISIONS
4. FORMATION OF THE NEURAL TUBE
5. PRIMARY BRAIN VESICLES &THEIR SUB DIVISIONS
6. FLEXURES OF NEURAL TUBE
7. DEVELOPMENT OF EXTERNAL FORM OF BRAIN
8. DEVELOPMENT OF VENTRICLES OF BRAIN
9. THE NEURAL CREST
10. DERIVATIVES OF THE NEURAL CREST
11. HISTOLOGICAL COMPONENTS OFTHE CNS
12. Layers Of Neural TubeFormation Of Neuroblast
13. DEVELOPMENT OF THE MEDULLA
14.

  • From Myelencephalon

15. Roof plate widens 16. Sulcuslimitansdivides Dorsal(lateral) alarlamina-
caudal bulbopontine extension
olivary nuclei
Sensory nuclei of cranial n of medulla
Ventral(medial) basal lamina-
Motor nuclei of cranial n of medulla
DEVELOPMENT OF MEDULLA OBLONGATA
17. CRANIAL NERVE NUCLEI OF MEDULLA OBLONGATA
18. MOTOR & SENSORY NUCLEI OF MEDULLA OBLONGATA
19. DEVELOPMENT OF THE PONS
20.

  • From ventral part of Metencephalon

21. Cranial bulbopontine extensionpontine nuclei 22. Axons of bulbopontine extensionMiddle cerebellar peduncle 23. Alar and basal laminacranial n nuclei 24. Fibres from cortexcorticospinal, corticopontine& corticobulbartracts

  • Lateralpart of alar laminarhombic lip (cerebellum)

CRANIAL &CAUDAL PARTS OF BULBOPONTINE EXTENSION
25. DEVELOPMENT OF MEDULLA&PONS
26. CRANIAL NERVE NUCLEI OF PONS
27. MOTOR &SENSORY CRANIAL NERVE NUCLEI OF THE PONS
28. DEVELOPMENT OF THE MIDBRAIN
29. DEVELOPMENT OF MID BRAIN

  • Frommesencephalon

30. Ventral or Basallaminaoculomotor n nuc
trochlear n nuc
EdingerWestphalnuc

  • Dorsal or Alar lamina

cells of colliculi
red nucleus
substantianigra

  • Descending fibres form crus cerebri/basis pedunculi