SHARK

SHEEP BRAIN

I.  DIVISIONS OF CNS

	Prosencephalon

		Telencephalon

			cerebral hemispheres
			olfactory tracts
			olfactory bulbs

		Diencephalon  

			optic chiasma
			hypophysis (homologous to pituitary)

	Mesencephalon

		optic lobes

	Rhombencephalon

		Metencephalon

			cerebellum
			auricles of cerebellum

		Myelencephalon

			medulla oblongata

	Spinal Cord

II.  NERVES

	superficial ophthalmic trunk
	optic

I.  TELENCEPHALON

	Cerebrum
		cerebral hemispheres
		frontal lobes
		occipital lobes
		temporal lobes
		cerebral fissure
		gyri
		sulci
	Olfactory bulbs
	Olfactory tracts
		lateral olfactory tracts
		rhinal fissures
		pyriform lobe
	Corpus callosum

 II.	DIENCEPHALON

	Optic chiasma
	Optic tracts
	Hypophysis
	Infundibulum
	Mammillary bodies
	Pineal body
	Third ventricle

III.	MESENCEPHALON

	Cerebral peduncles
	Corpora quadrigemina
		superior colliculi
		inferior colliculi

 IV.	METENCEPHALON

	Cerebellum
		vermis
		cerebellar hemispheres
	Pons

  V.	MYELENCEPHALON

	Medulla oblongata
	Pyramids
	Trapezoid body
	Ventral fissure

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