meninges

anatomical arachnoid being blood bone brain callosum cerebellum cerebri cerebrospinal cerebrum continuous cord corpus cortex dura epidural falx fluid foramen frontal gland human hypothalamus layers linked magnum mater medulla meninges midbrain nerves nervous neural neuraxis neuroimmune neurons occipital organs parietal pia pituitary pons protective sensory sinus sinuses skin skull spinal stem temporal tentorium thalami thalamus tissue veins ventricles