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
Aloe vera. Aloe vera aloaceae. Native to the SW, aloe is usually grown in pots in the eastern US for its medicinal uses. A good choice for a house plant, with size controlled by the pot it grows in. Many uses in the home such as body rub, treating burns, ingredient for salves, a bruise banisher, soothes sunburn,insect bites, frostbite rub,rashes,health drinks, and used in toothpaste. Zones 8-11. Click Here for the Aloe vera Careguide.