Responses of blood vessels in the resting hand and forearm to various stimuli

摘要: Abstract With the development of accurate plethysmographic methods, considerable knowledge has been gained regarding blood flow in, and vasomotor reactions of, vessels in hand. However, it demonstrated that alterations hand apparently do not parallel vascular responses elsewhere body. For example, Grant Pearson 1 and, more recently, Kunkel, Stead, Weiss 2 have reported adrenalin, although produces a marked decrease through hand, causes an increase forearm. Likewise, Abramson, Zazeela, Oppenheimer 3 observed smoking significant reduction practically no change Since measurements used qualitatively to gauge changes systemic during state shock 4 inhalation various gases, 5 becomes important ascertain under what conditions, if any, such assumptions are valid, whether reliable information concerning peripheral circulation may be obtained from studying other beds. The present study deals with comparison forearm different types stimuli. An attempt is made (1) relationship these two areas circulation, (2) evaluate clarify mechanisms responsible for limb-volume produced by stimuli, (3) or control differs