1. Name K Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum third ventricle  2. Name L Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum spinal cord third ventricle  3. Name M Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum third ventricle  4. Name N Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum spinal cord third ventricle  5. Name O Click here cerebellum cerebral aqueduct cerebral peduncles corpus callosum mammillary body occipital olfactory nerve optic chiasm optic nerve parietal lobe parietal-occipital fissure pineal pituitary pons quadrigeminals spinal cord temporal lobe transverse fissure ventral fissure vermis 6. Name P. Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum third ventricle  7. Name Q Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum spinal cord third ventricle  8. Name R Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum third ventricle  9. Name S  Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum third ventricle  10. Name T  Click here cerebellum cerebrum cerebral aqueduct cerebral peduncles corpus callosum fornix fourth ventricle intermediate mass lateral ventricle medulla mammillary body optic chiasm pineal pituitary pons posterior commissure quadrigeminals septum pellucidum third ventricle