Sheep Brain Dissection

2 Cerebral Hemispheres

Ventral

Dorsal

Posterior(Caudal)

Anterior(rostral)

HumanBrain

SheepBrain

Lateral View Mid-Saggital View

Just one long tube that is folded back on itself!

HumanBrain

SheepBrain

Lateral View Mid-Saggital View

Base of Brain and Cranial Nerves

Lateral Ventricles

Third Ventricle

Fourth Ventricle

Cerebral aqueduct

Central Canal of the spinal cord

Ventricles of the CNS

Forebrain Midbrain Hindbrain

Telencephalon Diencephalon MyelencephalonMetencephalonMesencephalon

Spinal Cord

Regions of the Central Nervous System

Hindbrain (Metencephalon and Myelencephalon)

Hindbrain

MyelencephalonMetencephalon

MedullaOblongata

Pons

Cerebellum

MedullaOblongata

CerebellumPons

Midbrain (mesencephalon)

Midbrain

Mesencephalon

Tectum

Tegmentum

Tectum -Superior Colliculus -Inferior ColliculusTegmentum

Cerebellum

Superior Colliculus

Inferior Colliculus

Midbrain (mesencephalon)

Midbrain

Mesencephalon

Tectum

Tegmentum

Tectum -Superior Colliculus -Inferior ColliculusTegmentum

Forebrain

Forebrain

Telencephalon Diencephalon

Thalamus

Hypothalamus

ThalamusHypothalamus

Optic Chiasm

Corpus Collasum

Medial Side of Neocortex

NeocortexBasal GangliaAmygdalaHippocampus“Limbic System”

Basal Ganglia

Accumbens

White Matter(Fiber Tracts)

Corpus Collasum

Lateral Ventricle

NeocortexTelencephalon

Basal Ganglia

Accumbens

White Matter(Fiber Tracts)

Corpus Collasum

Lateral Ventricle

Neocortex

Thalamus

Hypothalamus

Hippocampus

Lateral Ventricle

Third Ventricle

Telencephalon and Diencephalon

Hippocampus Curves Around

Hippocampus

http://www.humboldt.edu/~sheep/pge2.html (cant access but Humbolt Univ.)

http://library.med.utah.edu/WebPath/HISTHTML/NEURANAT/CNS014A.html (Univ. Utah)

http://www.anatomyatlases.org/ (Virtual Hospital at Univ. Iowa)

https://www.msu.edu/~brains/brains/ (Michigan State Univ.)

http://sps.k12.ar.us/massengale/sheep_brain_dissection_bi.htm (cant access)

http://starklab.slu.edu/neuro/SheepBrain.htm (William Stark)

With Great Appreciation for those on the Internet….