Über die Wirkung gefäßaktiver Substanzen auf den peripheren Kreislauf beim Menschen

The Absence of Vasoconstrictor Reflexes in the Forehead Circulation. Effects of Cold

“…It is possible that vasoconstrictor fibers do not reach the forehead skin. There are many observations which so suggest: the constancy of the forehead temperature and its failure to fall during prolonged constriction of the fingers and toes; the throbbing of the temporal artery during excitement; the frequent increase in forehead volume pulses during vasoconstrictor discharges (1) ; the relative constancy of the blood supply of head skin during massive disturbances of the circulation by drugs (5) ; the failure of unilateral cervical sympathectomy to increase the temperature of the forehead skin on that side (6)-the effects are also very small on the cheek, upper lip, nose and chin.…”

“…through the applicator, constriction occurred at once in the control finger but not immediately in the forehead skin which was being cooled (figs. [3][4][5][6].…”

Sympathectomy for Occlusive Arterial Disease††

“…The chemical that causes this spasm has been given various names: Bach (4), Gopfert et al . (5) and Lewis (6) named it histamine; White and Smithwick (7) described it as sympathin; defibrinated blood was the term applied to it by Landis (8); and Page (3) and Chambers et al . (9) considered it some type of unknown toxin.…”