Thiamine Overdose. Overdosing on thiamine, or vitamin B-1, is rare but can cause severe symptoms. Mild symptoms of an overdose include weakness and a headache, the American Pregnancy Association reports. In some cases, high vitamin B-1 levels can cause a rapid, irregular heart beat and low blood pressure.
Descending Aorta - major portion of the aorta that extends from the aortic arch to the trunk of the body. It forms the thoracic aorta and abdominal aorta. Thoracic Aorta (Chest Region): Visceral Branches - supply blood to the lungs, pericardium, lymph nodes, and esophagus.
The aorta is the large artery that leaves the heart and provides oxygen-rich blood throughout the body. Many diseases and conditions can cause the aorta to dilate (widen) or can cause aortic dissection (tear) increasing your risk for future life-threatening events. These conditions that can lead to aortic aneurysm and aortic dissection include: