For instance,

For instance, the role of the hypothalamus to help regulate arterial pressure is discussed in Chapter , thirst and water conservation in Chapter , temperature regulation in Chapter , and endocrine control in Chapter To illustrate the organization of the hypothalamus as a functional unit, let us summarize the more important of its vegetative and endocrine functions here as well. Figures and show enlarged sagittal and coronal views of the hypothalamus, which represents only a small area in Figure Take a few minutes to study these diagrams, especially to see in Figure the multiple activities that are excited or inhibited when respective hypothalamic nuclei are stimulated. In addition to the centers shown in Figure , a large lateral hypothalamic area shown in Figure is present on each side of the hypothalamus. The lateral areas are especially important in controlling thirst, hunger, and many of the emotional drives. A word of caution must be issued for studying these diagrams because the areas that cause specific activities are not nearly as accurately localized as suggested in the figures. Also, it is not known whether the effects noted in the figures result from stimulation of specific control nuclei or whether they result merely from Thalamus Figure Coronal view of the hypothalamus, showing the mediolateral positions of the respective hypothalamic nuclei. activation of fiber tracts leading from or to control nuclei located elsewhere.With this caution in mind, we can give the following general description of the vegetative and control functions of the hypothalamus.