Superior view of sheep brain Cerebellar hemispheres - coordination of muscles and equilibrium Vermis - connects the two cerebellar hemispheres Sulcus - increase the surface area of cerebral cortex Gyrus - increases the surface area of the cerebral cortex Longitudinal fissure - divides cerebrum into two cerebral hemispheres

Inferior view of sheep brain Pons - has respiratory center to work with the medulla Cerebellum - coordination of movement and equilibrium Spinal cord - has tracts that take impulses up to the brain or down from the brain Medulla oblongata - respiratory and cardiovascular center Optic tract - takes impulses to the occipital lobe of the cerebrum Optic chiasm - where optic fibers cross to go to the opposite side of cerebrum Optic nerve - brings impulses from the eye Olfactory tract Olfactory bulb - receives fibers from olfactory epithelium in the nasal cavity

Mid-sagittal view of sheep brain Pineal gland Third ventricle Lateral ventricle Corpus callosum Thalamus Optic chiasm Cerebral aqueduct Midbrain Pons Medulla oblongata Spinal cord Fourth ventricle Cerebellum Transverse fissure Occipital lobe of cerebrum Parietal lobe of cerebrum Frontal lobe of cerebrum

Frontal view of sheep brain Third ventricle Thalamus Thalamus Lateral ventricle Corpus callosum Longitudinal fissure Sulcus Gyrus