In biology, an adaptation, also called an adaptive trait, is a trait with a current functional role in the life of an organism that is maintained and evolved by means of natural selection. Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation.
Computed Tomography Angiogram (CT Angiogram). Guide. A computed tomography angiogram (CT angiogram) is a test that uses X-rays to provide detailed pictures of the heart and the blood vessels that go to the heart, lung, brain, kidneys, head, neck, legs, and arms.
A mesenteric angiogram is a special x-ray examination of. blood vessels supplying your stomach, bowel, liver, spleen. and pancreas. Normally, blood vessels do not show up on. ordinary x-rays. However, by injecting a special dye called. contrast medium, into the artery we can produce Xrays of.