Figure 1From: Arteriolar vasoconstrictive response: comparing the effects of arginine vasopressin and norepinephrineHamster window chamber model. In-vivo preparation of the hamster window chamber model with visible A0 arteriole and V0 vein. Other vessels (A1, branch off A0; A2, branch off A1; A3, branch off A2; A4, branch off A3), capillaries (defined as vessels with single red cell transit), and venules can only be classified under the intravital microscope.Back to article page