Microvessels of hamster buccal pouch under conditions of reduced systemic blood pressure.
Using implanted camera we studied hamster buccal pouch microvessels under conditions of reduced blood pressure. The correlation (R=0.30-0.85) between the diameter and pressure was observed in 42% vessels. During progressive decrease in blood pressure, R for the majority of left venules was below zero, while left arterioles had equal probability of having R<0 and R>0. For right venules the positive and negative correlations were equally probable, while right arterioles were predominantly characterized by R>0. Heterogeneous reactions in microvessels of different diameter were revealed.
Mikhailichenko
L A
LA
Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow.
Timkina
M I
MI
D000818:Animals; D002110:Caffeine / Q000008:administration & dosage; D002610:Cheek / Q000098:blood supply*; D006224:Cricetinae; D007022:Hypotension / Q000503:physiopathology*; D008297:Male; D010208:Papaverine / Q000008:administration & dosage; D011336:Probability
D002110:Caffeine; D010208:Papaverine