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
Part 2 of 2: Treating the Burn with Aloe Vera. 1. Cut aloe from a plant. If you have an aloe plant in your home or near where your burn occurred, you can use it to get fresh aloe. Remove a few meaty leaves near the bottom of an aloe vera plant.Cut off any spines on the leaves to avoid getting poked. Cut the leaves in half down the middle and score the insides with your knife.f you have an aloe plant in your home or near where your burn occurred, you can use it to get fresh aloe. Remove a few meaty leaves near the bottom of an aloe vera plant. Cut off any spines on the leaves to avoid getting poked.