aneurysm
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Arteriorrhexis means rupture of an artery, but it is not commonly used.The term most often used is "ruptured" but these can also be called "dissected" arteries. Dissected usually means that there is leakage of blood inside the layers of arterial tissue. However, if the vessel continues to tear all the way open, it can still be called dissection, but that would most often be called a "ruptured dissection"."Aneurysms" are weakened areas in the walls of arteries that allow them to bulge out or "balloon", these also can rupture and are called a "ruptured aneurysm" or also a "dissected aneurysm" if that happens.Atreriorrhexis means rupture of an artery.Anteri/o mean arteryRrhexis means rupture
pressure may cause it to bulge like a balloon directly above or below the blockage, causing a weakening of the vessel wall. The aorta may eventually rupture, causing massive bleeding and death
a fault
Shorts too tight? This shouldn't be any cause for concern, if you've got it, flaunt it.
This one's slightly complicated, so bear with me! I find diagrams help a lot, so since I can't put them in here, get a pencil and paper out and see if you can sketch what's going on in steps 1-4 if it helps you understand. 1) The Moon's gravity causes tides on Earth. In theory, the tidal bulge (where the water piles up) should be directly under the Moon. 2) However, Earth is spinning, which carries the tidal bulge forward a bit. So in reality, the tidal bulge is slightly ahead of the Moon. 3) The tidal bulge has a very small gravitational pull of its own, which pulls the Moon forwards in its orbit. This causes the Moon to speed up. 4) Newton's laws show that anything in an orbit that speeds up will move out higher into a bigger orbit, so the Moon gradually moves away. This effect isn't much, only about 3cm a year - that's about the same speed the plates drift across the Earth, or that your fingernails grow. However, it does mean that when the Moon formed, around 4.6 billion years ago, it was 20 times closer to Earth than it is now! This has even more implications, however: 5) At the same time as the bulge pulls the Moon forward and speeds it up, the Moon pulls the tidal bulge backwards, and slows it down. Friction between the ocean and the Earth beneath causes the Earth's rotation to slow down, too. So in effect, energy is being transferred from Earth to the Moon. Earth slows down, the Moon speeds up, and moves further away.