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1 Department of Physiology, College of Dentistry and Graduate Research Institute, Baylor University, Dallas, Texas
1. Blood flow and blood pressure were measured in the mandibular artery in 22 mongrel dogs.
2. Peripheral resistance of the vascular bed of the mandible was high (20.6).
3. Acetylcholine produced a limited vasodilation of the vascular bed in doses of 1.0 µg.
4. Epinephrine produced marked vasoconstriction effects on the artery in doses of 0.1 µg.
5. Stimulation of the mandibular nerve produced vasoconstriction comparable to that elicited by epinephrine administration.
Submitted on June 9, 1958
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