12 Key and Core Catalog With a mechanical key system, the level of security is determined by masterkey control. A masterkey system enables facilities of any size to manage the building by defining access by person and by area in increasing levels of complexity. Since BEST invented the standard for masterkey systems, there is no
When they occur in the upper part of the aorta, they are called thoracic aortic aneurysms. Aneurysms can occur anywhere in the thoracic aorta, including the ascending aorta near the heart, the aortic arch in the curve of the thoracic aorta and the descending aorta in the lower part of the thoracic aorta.
The function of the thoracic aorta is to carry oxygenated blood from the arch of the aorta to the iliac arteries. 18 people found this useful. Edit. Share to: 1  Defining the Aorta As the largest artery in the body, the aorta plays a vital role in delivering oxygen to the wider circulation.   The abdominal aorta provides oxygenated blood and nutrients to the lower half of the body The abdominal aorta is the final section of the largest artery in  the b â¦ ody. It supplies oxygenated blood to the abdominal organs,  pelvic organs, and the legs.