PTAN stands for Provider Transaction Access Number (medicare reimbursements). Suggest new definition. This definition appears frequently and is found in the following Acronym Finder categories: 1  Military and Government. 2  Science, medicine, engineering, etc.
Adrenaline also makes the blood vessels dilate in order to improve blood flow and oxygen delivery in case the body has to suddenly flee a dangerous situation. The veins in the face, as well as in the stomach lining and throughout the rest of the body, then have more blood than normal flowing through them, and they appear red. More about blushing: A surgery known as endothoracic sympathectomy can potentially eliminate blushing by snipping the small nerves located in the spine that trigger the response.
Dry flushing â blushing that is caused by increased vasodilator chemicals in the bloodstream â does not cause increased perspiration. Given the right stimulus (such as embarrassment), the nerves prompt the blood vessels to open wide, flooding the skin with blood and causing reddening of the face.