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
Where the Bears Are dangerous computer virus from ending up in the wrong hands and sniff out a mole from the agency. Meanwhile Wood's and Reggie's love life flares out, George gets engaged to a Sporting Wood model, and Reggie dumps Frank Coley. The sixth season premiered on August 31, 2017. It sees another madcap romp, with Nelson on trial for murder. The seventh and final season premiered on September 10, 2018. It consisted of 16 episodes with the series finale airing on November 1, 2018. Where the Bears Are Where the Bears Are is a comedy-mystery web series, which ran for seven seasons