At this station you are looking into the Surgery Ward. On your right is a table that holds the anesthesia machine. This is a square block with glass, metal and hoses. This is the instrument that delivers gas to the patient’s face through a cone-shaped mask. This gas is what keeps an animal asleep and not feeling pain when we work on them. Oxygen flows from the wall outlet into the square machine where it flows over a liquid bath of isoflurane. Anesthetic gasses evaporate quickly into the oxygen that flows from the machine down a clear tube to the cone-like mask that has a rubber bag attached to it. When a patient breathes in they inhale gas which goes to the lungs, into the blood stream and to the nerves of the body. When the patient exhales spent anesthetic, carbon dioxide and other ambient gasses are gently vacuumed from the facemask down a tube and into the wall outlet. These walls are not magic so the gases come and go through tubes to our basement. The oxygen tube goes to a closed situated below the art side of our front lobby. That’s about 100 feet from here. In that closet there are people-sized tanks of pressurized oxygen. They are packed when new with oxygen at 2000 pounds per square inch. The vacuum tubes go into the wall and directly down to the basement to a vacuum pump that is bigger than three people in a bear hug. If a surgery is taking place you will see that the people directly involved are wearing gloves and masks, and perhaps gowns and hairnets. This is to protect the patient from germs and the operators from germs too.