Imagine a tiny snake robot crawlig through your body, helpung a surgeon identify diseases and perform operation. It's not a science fiction. Scientists and doctor are using the creeping metallic tools to perform surgery on hearts, prostate and other organs. The snakerobot carry tiny camera's scissors and forscaps, and even more advance sensors are in the works. For now, they're powered by tethers that human control. But expert say the day is coming when some robots will roam the body on their own. "It won't be very long before we have robots that are nanobots, meaning, they will actualy be inside the body without tether," the cardiac surgery chief at New York-Presbyteian Hospital and Colombia University Medical Center, Dr Michael Argenziano said. Dr Argenziano wasn involved with some of the first US Food anf Drug Administration clinical trails on robotic surgery more than 10 years ago. Now he says snake robots have become a commonly used tool that gives surgeon a whole new perspective. "It's like the ability to have little hands inside the patients, as if a surgeon had been shrunken, and was workingon the heart valve," he said. However Dr Argenziano and experts in robot say the new creation work best when they're designed for very specific tasks. "The robot is a tool. It is no different from a special in that sense. It's really a master-slave device." he said. "... as if the surgeon had been shrunken " (Paragraph 3). The underline words is associated with...

Question

Imagine a tiny snake robot crawlig through your body, helpung a surgeon identify diseases and perform operation. It's not a science fiction. Scientists and doctor are using the creeping metallic tools to perform surgery on hearts, prostate and other organs. The snakerobot carry tiny camera's scissors and forscaps, and even more advance sensors are in the works. For now, they're powered by tethers that human control. But expert say the day is coming when some robots will roam the body on their own.

"It won't be very long before we have robots that are nanobots, meaning, they will actualy be inside the body without tether," the cardiac surgery chief at New York-Presbyteian Hospital and Colombia University Medical Center, Dr Michael Argenziano said.

Dr Argenziano wasn involved with some of the first US Food anf Drug Administration clinical trails on robotic surgery more than 10 years ago. Now he says snake robots have become a commonly used tool that gives surgeon a whole new perspective. "It's like the ability to have little hands inside the patients, as if a surgeon had been shrunken, and was workingon the heart valve," he said. However Dr Argenziano and experts in robot say the new creation work best when they're designed for very specific tasks. "The robot is a tool. It is no different from a special in that sense. It's really a master-slave device." he said.

"... as if the surgeon had been shrunken" (Paragraph 3). The underline words is associated with...