[The tonus and relative thickness of the wall of skeletal muscle arterioles].
Inner diameter, absolute and relative wall thickness, and blood flow velocity in arterioles of different branching orders were measured in the rat skeletal (cremaster) muscle. It was found that as the branching order increased the heterogeneity of arterioles with respect to their relative wall thickness also grew. In response to papaverine-induced relaxation of the smooth muscle, there was a direct correlation between vasodilatation and the relative wall thickness. It was shown that a degree of smooth muscle shortening in different arterioles varied widely, the relative wall thickness being a measure (characteristic) of this shortening.
Kostromina
E Iu
EIu
Shinkarenko
V S
VS
Rodionov
I M
IM
D000818:Animals; D001160:Arterioles / Q000033:anatomy & histology / Q000187:drug effects / Q000502:physiology*; D008297:Male; D008853:Microscopy / Q000295:instrumentation / Q000379:methods; D009132:Muscles / Q000098:blood supply*; D010208:Papaverine / Q000494:pharmacology; D051381:Rats; D014655:Vascular Resistance / Q000187:drug effects / Q000502:physiology*; D014664:Vasodilation / Q000187:drug effects / Q000502:physiology
D010208:Papaverine
Tonus i otnositel'naia tolshchina stenki arteriol skeletnoĭ myshtsy.