Occipital lobe Cerebrum Temporal lobe Parietal lobe Cerebellum Medulla oblongata Frontal lobe Central sulcus Pineal gland Portion of thalamus (blue area is lateral wall of third ventricle) Corpora quadrigemina of midbrain (blue "line" anteriorly is the cerebral aqueduct) Mammillary body (part of the hypothalamus) Hypophysis (pituitary) Fornix (part of limbic system) Hypothalamus Corpus callosum Optic chiasm