Brain glucose level, blood oxygen level, and other parameters. These hypothalamic nuclei send output signals to motor areas that can generate actions to rectify deficiencies. Some of the outputs also go to the pituitary gland, a tiny gland attached to the brain directly underneath the hypothalamus. The pituitary gland secretes hormones into the bloodstream, where they circulate throughout the body and induce changes in cellular activity. The individual animals need to express survival-promoting behaviors, such as seeking food, water, shelter, and a mate. The motivational system in the brain monitors the current state of satisfaction of these goals, and activates behaviors
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