440
UNIT 3
Regulation and Integration of the Body
12
Corpus callosum
Choroid plexus
Thalamus
(encloses third ventricle)
Pineal gland
Posterior
commissure
Corpora
quadrigemina
Cerebral
aqueduct
Arbor vitae (of cerebellum)
Fourth ventricle
Choroid plexus
Cerebellum
Arbor vitae
Fourth ventricle
Cerebellum
Septum pellucidum
Lateral ventricle
(covered by septum
pellucidum)
Corpus callosum
Fornix
Thalamus
Third ventricle
Anterior
commissure
Hypothalamus
Optic chiasma
Pons
Medulla oblongata
Mammillary body
Interthalamic
adhesion
(intermediate
mass of thalamus)
Interventricular
foramen
Anterior
commissure
Hypothalamus
Optic chiasma
Pituitary gland
(a)
(b)
Cerebral hemisphere
Mammillary
body
Pons
Medulla
oblongata
Spinal cord
Midbrain
Epithalamus
Pineal gland
Posterior
commissure
Corpora
quadrigemina
Cerebral
aqueduct
Midbrain
Epithalamus
Fornix
Figure 12.10
Midsagittal section of the brain.
(a)
Illustration highlighting the
diencephalon (purple) and brain stem (green).
(b)
Photo of same view.
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