Of course, not everyone feels that way during a closed-bore MRI, but itâs something to be wary of just in case. What if You Donât Think a Closed-Bore MRI Will Work For You? Thereâs two major reasons that someone might feel like they cannot undergo an MRI in a closed-bore machine.
estivation n 1: (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period [syn: {aestivation}] 2: (botany) the arrangement of sepals and petals in a flower bud before it opens [syn: {aestivation}]
For the purposes of this article, we'll use the term hibernation to describe any long-term reduction in body temperature (hypothermia) and metabolism during winter months. When an animal enters a hibernationlike state during the summer, it's known as estivation. It's much less common than hibernation. Hibernation in reptiles is sometimes called brumation. It differs from mammalian hibernation because reptiles are cold-blooded -- they can't control their own body temperature, so they need to spend the winter in a place that will stay warm enough.