Three groups of drugs are used to reduce the stickiness of platelets, the tiny blood elements that form the nucleus of a blood clot. By inhibiting the ability of platelets to clump together, the anti-platelet drugs inhibit blood clotting. These drugs are most effective in preventing abnormal blood clots from forming in arteries and are much less effective at preventing thrombosis in the veins. Aspirin and dipyridamole (Aggrenox). These drugs have a modest effect on platelet stickiness but cause fewer bleeding-related adverse effects than the other anti-platelet drugs.
The middle layer of an artery and vein contains mostly. connective tissue. simple squamous epithelium. smooth muscle. nervous tissue. 2. Arteries carry blood. away from the heart. toward the heart. both away and toward the heart.he middle layer of an artery and vein contains mostly. connective tissue. simple squamous epithelium. smooth muscle. nervous tissue. 2. Arteries carry blood. away from the heart. toward the heart. both away and toward the heart.
What are the tunica intima of the veins and arteries composed of? The tunica intima is the inner most layer of the artery. It is made up of a layer of ndothelial cells, supported by th internal elastic lamina. The endothelial cells are actuaâ¦lly in direct contact with the blood. The endothelium cells are polygonal, oval, or fusiform, having a vry distinct round or oval nuclei.