31. Nitric oxide is a vasodilator causing arterioles to expand and draw in more blood . }} 32. Variations in the flow of blood that circulates by arterioles are capable of responses in endothelium. 33. Interlobular and afferent arterioles show fibrinoid necrosis and intimal hyperplasia and are often occluded by thrombi. 34. By inhibiting an enzyme, ACE inhibitors relax the muscles around small arteries ( arterioles ). 35. The afferent arterioles , then, enter Bowman's capsule and end in the glomerulus. 36. Each arcuate artery supplies several interlobular arteries that feed into the afferent arterioles that supply the glomeruli. 37. The afferent arterioles form the glomerulus ( network of capillaries enclosed in Bowman's capsule ). 38. Unlike most other capillary beds, the glomerulus drains into an efferent arteriole rather than a venule. 39. Blanching of the skin often occurs when STS is injected into arterioles ( small artery branches ). 40. The juxtaglomerular cells are very sensitive to endogenous pressors and control blood flow through the afferent arteriole .
