Arctic Aeromedical Laboratory. Aerospace Medical Division, Air Force Systems Command. Fort Wainwright, Alaska. Technical documentary report TDR-62-6. 45 p.
Arctic Aeromedical Laboratory. Aerospace Medical Division, Air Force Systems Command. Fort Wainwright, Alaska. Technical documentary report TDR-62-6. 45 p.
This review of the control of circulation during hibernation begins with a general description of hibernation as it occurs in various groups of mammals and outlines the difficulties in the physiological study of hibernation. There follows a more detailed description of the three phases of hibernation -- entering hibernation, in deep hibernation, and waking from the hibernating state. The bulk of the review concerns research on rodents, which have been the most intensively studied of the animals which hibernate. It is emphasized that hibernation, at least in this group, is a precisely controlled series of physiological changes in which the animal maintains a homeostatic condition at all times in spite of profound changes in body temperature.