The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma (state of matter) interwoven with magnetic fields. It has a diameter of about 1,392,000 km, about 109 times that of Earth, and its mass (about 330,000 times that of Earth) accounts for about 99.86% of the total mass of the Solar System. Scientists calculate our Sun and solar system formed at the same time - a whopping 4.56 billion years ago.
Definition of crural. : of or relating to the thigh or leg; specifically : femoral crural artery.
Answers to your questions about this popular labor-pain reliever. Considering that at least 60 percent of American women today have an epidural for pain relief during labor, it's surprising how misunderstood this procedure is. For starters, even doctors use the word epidural generically, to encompass three similar, yet distinct procedures: epidurals, spinals and a more recently perfected procedure, the combined spinal epidural (CSE), or walking epidural.