Specifically, tactical equipment involves any type of gear that could be used in the performance of combative operations. Now, this description seems like a catch all, umbrella term and, to a great extent, it is. This is because the sheer volume of items that comprise tactical equipment is quite vast and varied.
Blood clots in the aorta is another complication. When an aneurysm develops, it can damage the wall of the aorta. The damage leads to clot formation. A blood clot can narrow the aorta and slow down blood flow to the rest of the body. Pieces of the blood clot can break off and get stuck in the bloodstream.
The diameter of the aorta gradually decreases as blood flow is directed to tissue and organs, flowing through arteries then the smaller arterioles then the capillary beds at the target organ, tissue, etc. Here the oxygen is liberated to the tissue and the blood picks up the resulting CO2. just now. Report Abuse. Oxygenated blood flows from the lungs to the left atrium contractions (heart muscle) cause the blood to leave the atrium and enter the left ventricle. Further contraction causes the blood to leave the atrium and enter the aorta.