Human brain produced and circulated. Underneath the cerebral cortex are several important structures, including the thalamus, the epithalamus, the pineal gland, the hypothalamus, the pituitary gland, and the subthalamus; the limbic structures, including the amygdala and the hippocampus; the claustrum, the various nuclei of the basal ganglia; the basal forebrain structures, and the three circumventricular organs. The cells of the brain include neurons and supportive glial cells. There are more than 86 billion neurons in the brain, and a more or less equal number of other cells. Brain activity is made possible by the interconnections of neurons and their release of neurotransmitters
The Body of the Dead Christ in the Tomb for what purpose the painting was created. Various suggestions have been offered, including as a predella for an altarpiece, a free-standing work, or an ornament for a sepulchre. In 1999, the art historians Oskar Bätschmann and Pascal Griener raised the possibility that the panel was intended to form part of a Holy Tomb, perhaps as a lid to be laid over a sepulchre. It is known that Holbein used a body fished out of the Rhine as a model for the work. The panel has attracted fascination and praise since it was created. The Russian author Fyodor Dostoevsky was captivated