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.
If you think of the circulation system like a tree with a series of veins branching out throughout the body, the aorta would be like the trunk of the circulatory system. Dilation of the Aorta. A dilated aorta is also known as an aortic aneurysm. An aneurysm is a blood clot that causes a vein to balloon or distend.Although we often think of such blood clots in terms of the veins in the brain, they also occur in aorta.ymptoms of a Dilated Aorta. Although the vast majority of aneurysms donât present any symptoms until they rupture or lead to other severe problems, aneurysms can present certain signs. Abdominal aneurysms for example, will cause pain in the abdomen or numbness in the leg.