| 1. | Figure 7 . thrombus in a vein ( arrows ) , identified by the absence of elastic fibers ( resorcin ? fuchsin elastic tissue stain , ? 125 ) . in contrast , a nearby artery contains internal elastic fibers ( arrowhead )
图7 .血管缺乏弹性纤维，证明为静脉，并见静脉血栓（箭头） 。相反，附近的动脉存在弹性纤维。 |
