The structures, properties, and chemical reactions of organic and biochemicals are determined by the functional groups present. Functional groups are defined as specific groupings of atoms or bonds which are part of a larger hydrocarbon chain. It is necessary that you are able to recognize these groups by structure and by name. Functional Group Names: The ending of the name as a suffix tells the type of compound or functional group present.
1 Aortic dissection occurs when a tear occurs in the inner muscle wall lining of the aorta, allowing blood to split apart the muscle layers of the aortic wall.  Symptoms of aortic dissection include a tearing or ripping pain in the chest, sweating, nausea, shortness of breath, weakness, or syncope (fainting). Abdominal aortic dissection can present with abdominal pain radiating to the flank or back.
A thoracic aortic aneurysm (TAA) may not cause symptoms until it dissects or grows large. If you have symptoms, they may include: Pain in your jaw, neck, back, or chest Coughing and/or hoarseness; Shortness of breath and/or trouble breathing or swallowing; A dissection is a split in one or more layers of the artery wall.