EGD or Upper Endoscopy Procedure. The device used during an EGD procedure is called a flexible endoscope. It is tubular in shape and is very similar to the colonoscope that gastroenterologists use to examine a patientâs colon during a colonoscopy procedure, just thinner in diameter.
What causes ocean currents? Ocean currents result from two processes - the action of wind on the surface of the water, and from variation in water temperature that causes movement- a process known as convection. Convection occurs because the oceanic waters heat up becoming less dense.
Eastern boundary currents are relatively shallow, broad, and slow-flowing. Western boundary currents are warm, deep, narrow, and fast-flowing currents that form on the west siâ¦de of ocean basins due to western intensification. Making the world better, one answer at a time. similarity is currents form gyres. difference is currents are any movement of water in one specific direction and gyres are circular patterns of water. similarity is currents form gyres. difference is currents are any movement of water in one specific direction and gyres are circular patterns of water.