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
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.hen you are going to remove a leaf to use from the Aloe Vera the best thing to do is use a sharp knife and cut it at the base of the leaf -- where the soil line meets the leaf. To store it, after you've used it, you can put it in a sandwich bag, wrap in foil and put in the fridge that way. It will last 4-5 days.