Atropine is in a class of drugs known as anticholinergics. It works by blocking the actions of acetylcholine, a neurotransmitter that helps move electrical impulses among nerve cells. Atropine Eye Drops. Atropine is also available in an eye drop form to treat certain ophthalmic conditions. It can be used before eye exams to widen the pupil of the eye, or to help disorders such as uveitis. Atropine Warnings. Before taking this medicine, tell your doctor if you have or have ever had: Numbness or tingling in your hands or feet
Kentucky is undeniably cave country. Since the state's geology is mostly limestone, one is never very far from a cave, karst or sinkhole. The Kentucky Speleological Society cave index indicates there are at least 130 caves in the state with a mile or more of charted tunnels, including the world's largest cave system at Mammoth Cave National Park. For tourists and serious cavers alike, the state has plenty of underground adventure on offer.
Mammoth Cave near Cave City, Kentucky, is the world's longest cave. More than 367 miles (591 km) of passages have been mapped. To get an idea of how long Mammoth Cave is, you should consider that the second longest cave in the world, Optimisticeskay Cave, in the Ukrainskaya region of the C.I.S. (former Soviet Union), is only 143 miles (230 km) long. Mammoth Cave is three times longer than its nearest competitor. Not only is the cave the longest in the world, but cave mappers believe the cave system will eventually prove to be 560 miles (900 km) long! Mammoth Cave was formed in Mississippian-age limestone rock. The cave is 379 feet (118 m) deep, and contains at least 5 levels of passages.