Effects of Change of Head, Limb and Body Position on Cephalic Circulation

DON'T move — you'll perturb your homeostasis! Changing from the recumbent to the erect position results in profound readjustments in cerebral circulatory dynamics; even moments of the arm affect cephalic circulation. Furthermore, within that mobile isthmus, the neck, the arteries and the veins that supply the brain and the cervical cord are subjected to mechanical stresses whenever the head moves. Some of these effects are the subject of this review.The human body sacrifices much structural strength to have a neck. What purpose does the neck serve? Some suggest that its use is limited to joining the head to the . . .