title: [Intravital microscopic studies of the pial vessels in the animal experiment].
abstract: In cats, a direct observation of the brain surface was made possible by fenestration. The pial vessels were observed by means of intravital incident-light microscopy. Particular attention was paid to blood pressure, blood pH, pCO2 and pO2. Mainly with diffuse vasodilation (hypotension) the capillaries stood out as a close network. Normally, interarterial anastomoses were rarer than intravenous ones. Arteriovenous anastomoses were not found. The interarterial blood column rarely came to a standstill, the intervenously this was observed frequently. Two kinds of intervenous anastomoses were found: short connections between veins running close to each other and long venules between vessels of different outflow systems.
mesh_terms: D000818:Animals; D002415:Cats; D002536:Cerebral Arteries / Q000166:cytology; D002560:Cerebrovascular Circulation; D006706:Homeostasis; D007427:Intracranial Pressure; D008833:Microcirculation; D010841:Pia Mater / Q000098:blood supply* / Q000166:cytology / Q000502:physiology
vernacular_title: Intravitalmikroskopische Beobachtung der pialen Gefässe im Tierexperiment.