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.
What is a coronary angiogram CT scan? A computed tomography (CT) scan uses a special X-ray machine to take detailed pictures of the inside of your body. A coronary angiogram CT, also called a coronary CTA, scans the inside of the tiny blood vessels of your heart. It is a noninvasive procedure because we do not need to put anything in your heart. The scanner can scan your entire heart in just 5 heartbeats.