In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series or any expression; it is usually a number, but may be any expression. In the latter case, the variables appearing in the coefficients are often called parameters, and must be clearly distinguished from the other variables. For example, in.
Vasovagal syncope is a common cause of fainting. The vagus nerve is overstimulated and causes the body's blood vessels to dilate and the heart to slow down. This anti-adrenaline effect decreases the ability of the heart to pump blood upward to the brain against gravity. Without blood flow, the brain turns off.
77 Followers. A. Neurocardiogenic syncope is the most common reason for fainting. Neurocardiogenic syncope is also called vasovagal syncope. In neurocardiogenic syncope, blood pressure rapidly falls, and blood flow to the brain becomes very low. The person loses consciousness (passes out or faints), usually for only a few seconds.