[Arteriole reactions of the submaxillary muscle to stationary and periodically repetitive displacements of its fibers and to their contraction].
Stationary local displacement of resting fibers in the frog decentralized submaxillary muscle affected by a piezoelectric device did not usually result in persistent changes of the diameter of nearby arteries. During oscillatory displacement (4 s-1) the same arterioles, exposed to microdeformation of a similar form and amplitude, dilated with a mean diameter increase averaging 36%. During contraction of submaxillary muscle (incomplete tetanus with 4 s-1) the diameter of these vessels increased by 32.69%. Comparison of the data obtained made it possible to suggest that arteriolar myocytes responded with selective relaxation only to the dynamic component of microdeformation.
R S
RS
Sonina
V M
VM
Khaiutin
D000818:Animals; D001160:Arterioles / Q000502:physiology; D004594:Electrophysiology; D008410:Masticatory Muscles / Q000098:blood supply*; D009119:Muscle Contraction; D011898:Ranidae; D014664:Vasodilation
Reaktsii arteriol podcheliustnoĭ myshtsy na statsionarnye i periodicheski povtoriaiushchiesia smeshcheniia ee volokon i na ikh sokrashchenie.