THECENTRAL NERVOUS SYSTEM

CNS

DIVISION OF NERVOUS SYSTEM

CENTRAL NERVOUS SYSTEM (CNS) BRAIN

PROENCEPHALON (FOREBRAIN)

TELENCEPHALON DIENCEPHALON

MESENCEPHALON (MIDBRAIN)

RHOMBENCEPHALON (HINDBRAIN)

METENCEPHALON MYELENCEPHALON

SPINAL CORD

PERIPHERIAL NERVOUS SYSTEM (PNS) SOMATIC (SNS)

NERVES GANGLIA PLEXUSES

AUTONOMIC (ANS) NERVES GANGLIA PLEXUSES

BRAIN DIVISION

CEREBRUM

CEREBELLUM

BRAIN STEM DIENCEPHALON MESENCEPHALON PONS MYELENCEPHALON

DEVELOPMENT OFCNS

NEURAL PLATE (17th day)

NEURAL GROOVE neurulation (18-21day)

NEURAL TUBE & CREST (21st day) NEUROPORUS ANTERIOR (25th day) NEUROPORUS POSTERIOR (28th day)

HUMAN EMBRYO

NEURAL PLATE

NEURAL TUBE & CREST

TUBE & CREST

DEVELOPMENT OF CNS

DEVELOPMENT OF CNS

BRAIN DEVELOPMENT

ORIGIN OF THE BRAIN

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

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!

SCHEDULE OF GRAY&WHITE MATTER

GRAY MATTER

WHITE MATTER

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

TRANSVERSE SECTION OF BRAIN

NEOCORTEX

MOTOR

SENSORY

ASSOCIATON

NEOCORTEX

NEOCORTEX

BRODMANN’S AREAS

AREAS OF BRODMANN

NEOCORTEX

MOLECULAR

OUTER GRANULAR

PYRAMIDAL CELL

INNER GRANULAR

GANGLIONIC

MULTIFORM

CEREBRUM CORTEX LAYERS

PYRAMIDAL CELLS

CEREBELLUM

CEREBELLARCORTEX

MOLECULAR LAYERPURKINJE CELL LAYERGRANULAR LAYER

CEREBELLUM CORTEX

PURKINJE CELL

SPINAL CORD

SPINAL CORD

SPINALCORD

HORNS ANTERIOR LATERAL DORSAL

GRAY COMMISURAFUNICULES ANTERIOR LATERAL POSTERIOR

MENINGES

MENINGES

DURA MATER

ARACHNOID

PIA MATER

CRANIAL MENINGES

CRANIAL MENINGES

SPINAL MENINGES

SPINAL MENINGES

ARACHNOID & PIA MATER

CEREBROSPINAL FLUID

FUCTION

PRODUCTION

FLOW

RESORPTION

COMPOSITION

CHOROID PLEXUS

CSF - SECRETION

CHOROID PLEXUS LATERAL, 3-rd AND

4-th VENTRICULES losse connective tissue

(pia mater) fenestrated capillares

EPENDYMAL CELLS cuboidal / collumnar ion-transporting

CHOROID PLEXUS

CSF

VOLUMEN 135mlDAILY SECRETION 550mlFILS VENTRICLES, CENTRAL CANAL, SUBARACHNOIDAL AND PERIVASCULAR SPACE

FUNCTION ENVELOPES CNS WITH

HYDROSTATIC COAT QUICK REGULATION

OF ICP (INTRACRANIAL PREASURE)

CSF - RESORPTION

ARACHNOID VILLI

VENAS OF PIA MATTER

INTO EPINEURUM OF CRANIAL NERVES

BLOOD-BRAIN BARIER

FUNCTIONAL DEVICE

PREVENTS UNCONTROLED PASSAGE OF SUBSTANCES

PROTECT NEURONS

BBB

ENDOTHELIAL CELLS TIGHT JUNCTIONS ENZYMATIC SYSTEMS

BASAL MEMBRANE

PERIVASCULAR SPACE MACROPGAGES AND

MICROGLIA

PERIVASCULAR GLIA MEMBRANE FOOT-LIKE PROCESSES

OF ASTROCYTES

BBB

ANS

ANS

sANS

pANS

ANS