HCC Ybor Campus HCC SouthShore Campus HCC Plant City Campus HCC District Administrative Offices HCC Dale Mabry Campus HCC Brandon Campus

Take a good look at the dorsal external brain (including the lateral view). You can probably still see some of the dura_mater covering the outer surface of the dorsal brain. Observe the major structures: the cerebrum, cerebellum, and spinal_cord.

The visible structures on the ventral surface of the brain include the olfactory_bulbs, two regions of the brain_stem (the medulla and the pons), the cerebral_peduncles (which are associated with the third brain stem region known as the midbrain; the cerebral peduncles are fiber tracts that connect the cerebrum and the medulla, the mammillary_body (humans have two - they help with sense of smell) and optic_nerves. The cross-over point of the optic nerves is called the optic_chiasma.

The sagittal sheep brain section allows a review of the internal organization of the brain. Identify the

cerebral_hemisphere,

cerebellum,

spinal_cord,

medulla_oblongata,

pons,

midbrain,

corpora_quadrigemina,

optic_nerve,

mammillary_body, and

corpus_callosum

Notice the physical appearance of the cut cerebellum. This pattern is referred to as the arbor_vitae (tree of life).

The dorsiflexed sheep brain reveals the pineal_body (also called the pineal gland), cerebellum, cerebrum, and the corpora_quadrigemina.

Note: The corpora quadrigemina consist of two superior_colliculi (visual reflex centers) and two inferior_colliculi (auditory reflex centers).

 

Cerebral hemisphere Cerebral hemisphere Cerebellum Spinal cord Olfactory bulb Olfactory bulb Optic nerve Optic nerve Optic nerve Optic nerve Optic chiasma Mammillary body Section of the cerebrum (cerebral cortex) Section of the cerebrum (cerebral cortex) Section of the cerebrum (cerebral cortex) Pons Medulla Spinal cord Cerebellum Cerebral peduncle Corpus callosum Optic nerve Mammillary body Cerebellum Cerebrum (cerebral cortex) Spinal cord Medulla Pons Midbrain Spinal cord Superior colliculus of the corpora quadrigemina Inferior colliculus of the corpora quadrigemina Spinal cord Cerebellum Medulla Pons Midbrain Cerebrum (cerebral cortex) Cerebrum (one hemisphere) Cerebrum (one hemisphere) Pineal gland Superior colliculus of the corpora quadrigemina Superior colliculus of the corpora quadrigemina Inferior colliculus of the corpora quadrigemina Cerebellum Spinal cord