Direct observation of skeletal muscle blood vessels (rat cremaster)
نویسندگان
چکیده
منابع مشابه
The effect of oxytocin on blood vessels of cremaster muscle of the rat.
Oxytocin administered intravenously to the anaesthetized rat produced dilatation of the blood vessels of the cremaster muscle at concentrations ranging from 2.5 times 10-minus 11 to 2.5 times 10-minus 9 M. When applied topically to the exposed vessels it produced constriction at concentrations ranging from 2.5 times 10-minus 12 to 5.0 times 10-minus 8 M. Oxytocin was thus similar to adrenaline ...
متن کاملA technique for the microscopic study of blood vessels in living striated muscle (cremaster).
A technique is described whereby it is possible to study the vessels of a striated muscle (the rat cremaster) in vivo. In the anesthetized rat, a part of the scrotal skin is excised; the cremaster muscle is exposed and studied by epi-illumination. To improve the optical conditions, a white reflecting surface is brought behind the cremaster through the inguinal canal. Twitching of the muscle may...
متن کاملAutoregulation of blood flow within individual arterioles in the rat cremaster muscle.
Autoregulatory responses to alterations in arterial or venous perfusion pressure were determined for individual arterioles within the rat cremaster muscle. The cremaster muscle of pentobarbital anesthetized rats (50 mg/kg, ip) was surgically exposed and maintained in a controlled tissue bath for visualization by in vitro television microscopy. Cremaster bath PO2 was controlled at either a high ...
متن کاملMechanisms of cell injury in rat mesentery and cremaster muscle.
The events responsible for cell injury after a tissue stimulation are only incompletely understood. The purpose of this study was to examine mechanisms of cell injury in two tissues, rat mesentery and cremaster muscle, after tissue stimulation with N-formylmethionyl-leucyl-phenylalanine (FMLP) and platelet-activating factor (PAF). The response was studied in the same animal in random order usin...
متن کاملImaging of oxygen transfer among microvessels of rat cremaster muscle.
BACKGROUND The proximity of capillaries, arterioles, and venules provides complex spatial relationships that lead to oxygen transfer among microvessels. Although a conceptual image of complex oxygen transfer among microvessels has been hypothesized, in vivo mapping of oxygen saturation (SO2) levels in microvessels had never been performed. METHODS AND RESULTS The oxygen profile of the arterio...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1964
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1964.sp007407