Brain anatomy. Historical anatomical artwork of internal brain structures. The brain is seen from below, with the front of the brain at top. One of the hemispheres of the brain is intact (left), and the other half has been dissected (right). This is done to show the connections between three main parts of the brain. The most primitive part, the brainstem (white, lower centre) connects to the spinal cord (not seen). Branching out from the brainstem are connections to the cerebellum (lower right and left) and the cerebrum (upper right and left). The cerebrum produces conscious thought and memory. Artwork from The Nerves of the Human Body (Ed. Jones Quain, London, 1839).