Vasodilation refers to the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins (called venodilators), large arteries, and smaller arterioles. The process is the opposite of vasoconstriction, which is the narrowing of blood vessels. When blood vessels dilate, the flow of blood is increased due to a decrease in vascular resistance. Therefore, dilation of arterial blood vessels (mainly the arterioles) decreases blood pressure.
Answer by Bessey52. Confidence votes 7.6K. An IQ of 123 is in the upper 5% of the population-however, even if you may be blessed with a high IQ, it comes down to what you plan to do to use it to its full capacity. A good IQ test is not age-dependent, so any score over 100 (which is average) would be, by definition, above average, irrespective of age. 2 people found this useful.
There is nothing else that we have that predicts more things better than IQ, says Robert Plomin, professor of behavioral genetics at the Institute of Psychiatry, King's College London. It predicts educational ability, occupation status, and even health and longevity.or body weight, which is about 70 percent heritable, there are 32 genes that have been identified that account for maybe two percent heritability, said Plomin, whose project The Study of Mathematically Precocious Youth is the source of data for Zhao's genetic study. There's a very long way to go..