An abdominal aortic aneurysm (AAA) is a swelling (aneurysm) of the aorta – the main blood vessel that leads away from the heart, down through the abdomen to the rest of the body. The abdominal aorta is the largest blood vessel in the body and is.
Lymphocytes- tyoes of white blood cells which are separated into B cells and T cells. Both of these fight against infections. The B cells release the antibodies that fight the infection whereas the T cells go out and attack cancer cells themselves.