The central nervous system consists of the brain and spinal cord. The brain is divided into the telencephalon, diencephalon, mesencephalon, and rhombencephalon. The central nervous system develops from the neural plate and neural tube during embryogenesis. It contains gray matter, made up of neuron cell bodies, and white matter composed primarily of myelinated axons. The peripheral nervous system connects the central nervous system to the rest of the body.

1. THE
CENTRAL NERVOUS SYSTEM
CNS

2. DIVISION OF NERVOUS
SYSTEM
CENTRAL NERVOUS
SYSTEM (CNS)

BRAIN



TELENCEPHALON
DIENCEPHALON
MESENCEPHALON
(MIDBRAIN)
RHOMBENCEPHALON
(HINDBRAIN)




PROENCEPHALON
(FOREBRAIN)


PERIPHERIAL NERVOUS
SYSTEM (PNS)
METENCEPHALON
MYELENCEPHALON
SPINAL CORD
SOMATIC (SNS)




NERVES
GANGLIA
PLEXUSES
AUTONOMIC (ANS)



NERVES
GANGLIA
PLEXUSES

5. BRAIN DIVISION
CEREBRUM
CEREBELLUM
BRAIN STEM




DIENCEPHALON
MESENCEPHALON
PONS
MYELENCEPHALON

6. DEVELOPMENT OF
CNS
NEURAL PLATE (17th day)
NEURAL GROOVE neurulation (18-21day)
NEURAL TUBE & CREST (21st day)
NEUROPORUS ANTERIOR (25th day)
 NEUROPORUS POSTERIOR (28th day)


7. HUMAN EMBRYO

8. NEURAL PLATE

9. NEURAL TUBE & CREST

10. TUBE & CREST

11. DEVELOPMENT OF CNS

12. DEVELOPMENT OF CNS

13. BRAIN DEVELOPMENT

14. ORIGIN OF THE BRAIN

15. CEREBRUM-CORTEX
NEOCORTEX (Cerebral
hemisheres)


6 layers
perception, association, reacting
PALEOCORTEX
(Olfactory cortex)


3 layers
smell perception, stereotypical
sexual behaviour
ARCHICORTEX
(Hippocampus)


2-4 layers
learning, memorizing

16. GENERAL ORGANIZATION OF
CNS
GRAY MATTER






NEURON BODIES
DENDRITES
INITIAL SEGMENT OF
AXON (UNMIELINATED)
PROTOPLASMATIC AND
FIBROUS ASTROCYTES
MICROGLIA
CAPILARES
WHITE MATTER






MIELINATED AXONS
OLIGODENDROCYTES
FIBROUS ASTROCYTES
MICROGLIA
CAPILARES
NO ANY NEURON
BODIES!

17. SCHEDULE OF
GRAY&WHITE MATTER

18. GRAY MATTER

19. WHITE MATTER

20. GRAY&WHITE MATTER
LOCALISTAION
GRAY



CORTEX OF
CEREBRUM AND
CEREBELLUM
BASAL NUCLEI,
THALMUS,
HYPOTHALMUS
HORNS AND GRAY
COMISSURES OF
SPINAL CORD
WHITE


TRACTS
FUNICULES OF SPINAL
CORD

21. TRANSVERSE SECTION OF BRAIN

23. NEOCORTEX
MOTOR
SENSORY
ASSOCIATON

24. NEOCORTEX

25. NEOCORTEX

26. BRODMANN’S AREAS

27. AREAS OF BRODMANN

28. NEOCORTEX
MOLECULAR
OUTER GRANULAR
PYRAMIDAL CELL
INNER GRANULAR
GANGLIONIC
MULTIFORM

29. CEREBRUM CORTEX LAYERS

30. PYRAMIDAL CELLS

31. CEREBELLUM

32. CEREBELLAR
CORTEX
MOLECULAR LAYER
PURKINJE CELL LAYER
GRANULAR LAYER

33. CEREBELLUM CORTEX

34. PURKINJE CELL

35. SPINAL CORD

36. SPINAL CORD

37. SPINAL
CORD
HORNS



ANTERIOR
LATERAL
DORSAL
GRAY
COMMISURA
FUNICULES



ANTERIOR
LATERAL
POSTERIOR

39. MENINGES

41. MENINGES
DURA MATER
ARACHNOID
PIA MATER

42. CRANIAL MENINGES

43. CRANIAL MENINGES

44. SPINAL MENINGES

45. SPINAL MENINGES

46. ARACHNOID & PIA MATER

47. CEREBROSPINAL FLUID
FUCTION
PRODUCTION
FLOW
RESORPTION
COMPOSITION

48. CHOROID PLEXUS

49. CSF - SECRETION
CHOROID PLEXUS



LATERAL, 3-rd AND
4-th VENTRICULES
losse connective tissue
(pia mater)
fenestrated capillares
EPENDYMAL
CELLS


cuboidal / collumnar
ion-transporting

50. CHOROID
PLEXUS

51. CSF
VOLUMEN 135ml
DAILY SECRETION 550ml
FILS VENTRICLES,
CENTRAL CANAL,
SUBARACHNOIDAL AND
PERIVASCULAR SPACE
FUNCTION


ENVELOPES CNS WITH
HYDROSTATIC COAT
QUICK REGULATION
OF ICP (INTRACRANIAL
PREASURE)

52. CSF - RESORPTION
ARACHNOID VILLI
VENAS OF PIA
MATTER
INTO EPINEURUM
OF CRANIAL
NERVES

53. BLOOD-BRAIN BARIER
FUNCTIONAL
DEVICE
PREVENTS
UNCONTROLED
PASSAGE OF
SUBSTANCES
PROTECT
NEURONS

54. BBB
ENDOTHELIAL CELLS


TIGHT JUNCTIONS
ENZYMATIC SYSTEMS
BASAL MEMBRANE
PERIVASCULAR
SPACE

MACROPGAGES AND
MICROGLIA
PERIVASCULAR GLIA
MEMBRANE

FOOT-LIKE PROCESSES
OF ASTROCYTES

55. BBB

56. ANS

57. ANS

58. sANS

59. pANS

60. ANS