CENTRAL NERVOUS SYSTEM

DEVELOPMENT OF CNS

DEVELOPMENT OF NEUROBLASTS

COLUMNAR EPITHELIAL CELLS

SPONGIOBLASTS

MYELOSPONGIA

NEUROBLASTS

THE ROPE LADDER

THE RADIAL GLIAL GUIDE CELLS

PRIMARY BRAIN VESICLES

SECONDARY BRAIN VESICLES

RHOMBENCEPHALON

• MYELENCEPHALON

• METENCEPHALON

MYELENCEPHALON

POSTERIOR VIEW

ON CROSS SECTION

FIBRES OF NUCLEI

NUCLEI OF MEDULLA OBLANGATA

• OLIVARY NUCLEUS

• NUCLEI OF CRANIAL NERVES 9, 10, 11 AND 12

• NUCLEI OF THE RETICULAR FORMATION

METENCEPHALON

• PONS VAROLII

• CEREBELLUM

PONS VAROLII

CORTICOPONTINE AND PONTOCEREBELLAR TRACTS

CEREBELLUM

PHYLOGENETIC STAGES OF THE CEREBELLUM

• ARCHEOCEREBELLUM

• PALEOCEREBELLUM

• NEOCEREBELLUM

WHITE MATTER OF CEREBELLUM

• SUPERIOR CEREBELLAR PEDUNCLE

• MIDDLE CEREBELLAR PEDUNCLE

• INFERIOR CEREBELLAR PEDUNCLE

NUCLEI OF CEREBELLUM

• DENTATE NULEUS

• EMBOLIFORM NUCLEUS

• FASTIGIAL NUCLEUS

• GLOBOSUS NUCLEUS

MESENCEPHALON

HAS TWO PORTIONS

• ROOF OR TECTAL LAMINA

• CEREBRAL PEDUNCLES

DORSAL PART OF MIDBRAIN

TECTAL LAMINA• SUPERIOR QUADRIGEMINAL BODIES:

SUBCORTICAL CENTRE FOR VISION

• INFERIOR QUADRIGEMINAL BODIES: SUBCORTICAL CENTRE FOR AUDITARY SENSATION

RED NUCLEUS: SAUSAGE SHAPED, ELONGATED, PAIRED STRUCTURE EXTENDING FROM THE DIENCEPHALON UNTIL THE LEVEL OF THE INFERIOR COLLICULI.

RUBROSPINAL TRACT

DIENCEPHALON

• THALAMENCEPHALON

• HYPOTHALAMUS

• THIRD VENTRICLE

THALAMENCEPHALON

EPITHALAMUS

HYPOTHALAMUS

HYPOTHALAMIC NUCLEI

HYPOTHALAMUS IN HOMEOSTASIS

LIMBIC SYSTEM

TELENCEPHALON

• BASAL GANGLIA

• CEREBRAL CORTEX

BASAL GANGLIA

CEREBRAL CORTEX

• FRONTAL LOBE

• PARIETAL LOBE

• TEMPORAL LOBE

• OCCIPITAL LOBE

• INSULA

HISTOLOGICAL STRUCTURE

VENTRICLES OF THE BRAIN

FOURTH VENTRICLE

FLOW OF CSF

BLOOD SUPPLY

WILLIS’ CIRCLE

BLOOD BRAIN BARRIER

VENOUS DRAINAGE