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Brain and Spinal Cord Posterior median sulcus Central canal Dorsal root ganglion Dorsal root Dorsal horn Ventral horn Ventral root Anterior median fissure Grey matter White matter Parietal lobe Frontal lobe Temporal lobe Occipital lobe Transverse fissure Cerebellum Parietal lobe Frontal lobe Occipital lobe Longitudinal fissure Dura mater Arachnoid mater (shiny surface) Longitudinal fissure (separates cerebral hemispheres) Olfactory bulb (CN I) Optic chiasma (CN II) Pituitary gland Trigeminal nerve (CN V) Fornix Corpus callosum Thalamus Hypothalamus Optic chiasma Medulla Oblongata Pons Midbrain Pituitary gland Corpora quadregemina Arbor vitae Cerebellum Pineal gland Corpora quadragemina, superior colliculus Pineal gland Thalamus Corpora quadragemina, Inferior colliculus Hypothalamus Pituitary gland Mammilary body Infundibulum Optic chiasm Third ventricle (forms a number “3”) Lateral ventricle Fourth ventricle Cerebral aqueduct Corpus callosum Fornix Midbrain Pons Medulla Oblongata Thalamus Hypothalamus Optic chiasm Pituitary gland Fornix Pineal body Mammilary body Cerebral aqueduct Fourth ventricle Lateral ventricle Fornix 3rd ventricle Mammilary body Massa intermedia: connects the two halves of the thalamus. Seen on a frontal cut of the brain. Insula • • The INSULA is the portion of the cerebral cortex folded deep within the lateral sulcus (the fissure separating the temporal lobe from the parietal and frontal lobes). It is involved in consciousness , perception, motor control, self-awareness, cognitive functioning, and interpersonal experience. In relation to these, it is involved in psychopathology. Cranial Nerves I II III IV V VI IX XI X XII VII VIII Circle of Willis (all the vessels that form a circle here) Internal carotid artery Basilar artery Vertebral artery Circle of Willis Internal carotid Basilar Vertebral Spinal nerves and Dorsal root ganglia • Conus medullaris • Cauda equina Nervous Tissue • Sheep Whole Brain video • Sheep Half Brain video • The rest of these slides are not on the test! Meningioma Meningioma Brain Cancer Normal MRI Normal MRI Spinal cord tumor Spinal cord tumor Spinal cord tumor Spinal cord tumor Spinal cord tumor
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