Their smooth muscle is less than arteries. Elastic fibers provide recoil which is what you need in arteries to propel the blood forward. Veins lack these which is why large amounts of blood can be stored in them without the walls providing any sort of recoil and keeping pressure low.elative to the walls of arteries, the veins' walls are thinner, because the pressure of the blood in the veins is much lower; so low in fact, that valves are required to prev â¦ ent blood in the veins flowing backwards.
The plant Agave americana, which is sometimes called American aloe, belongs to the Asparagaceae, a different family. The genus is native to tropical and southern Africa, Madagascar, Jordan, the Arabian Peninsula, and various islands in the Indian Ocean (Mauritius, Reunion, RÃ©union, comoros.). etc
Tips For Growing Aloe Vera Plants and DIY Aloe Treatments. The Aloe Vera plant has many aliases -- the Miracle Plant, the Medicine Plant, the Burn Plant. Whatever you want to call it, this plant has a clear gel inside the leaves that is used for a multitude of purposes and it is easy to grow. Eddie Russell with Cornelius and Calloway's Nursery has tips for growing your own Aloe Vera plant and a few DIY recipes.