Brain vessels enter the central nervous system through holes in the meningeal layers. The cells in the blood vessel walls are joined tightly to one another, forming the blood–brain barrier, which blocks the passage of many toxins and pathogens (though at the same time blocking antibodies and some drugs, thereby presenting special challenges in treatment of diseases of the brain). Neuroanatomists usually divide the vertebrate brain into six main regions: the telencephalon (cerebral hemispheres), diencephalon (thalamus and hypothalamus), mesencephalon (midbrain), cerebellum, pons, and medulla oblongata. Each of these areas has a complex internal structure. Some parts, such as the cerebral cortex
The Body in Question The Body in Question The Body in Question is a British-based, internationally co-produced medical television series first aired in the UK in November 1978. This is a 13-part series (1 hour episodes) on all aspects of medicine and health science, written and presented by Dr Jonathan Miller. Miller considers the functioning of the body as a subject of private experience. He explores our attitudes towards our bodies, our ignorance of them, and our inability to read our body's signals. The first episode starts with vox populi asking where various organs in the body are located. By the final episode we